- Corin Nemec - Jonas Quinn
- Robert Picardo - Richard Woolsey
- Teryl Rothery - Janet Fraiser
- Tony Amendola - Bra'tac
- Morena Baccarin - Adria
- Cliff Simon - Ba'al
- Michael Shanks - Daniel Jackson
- Michael Shanks - Thor (voice)
- Laura Mennell - Mary
- Jason Gray-Stanford - Orner
- Emily Holmes - Kianna Cyr
- John Aylward - President Nadal
- Jesse Moss - Lieutenant J. Hibbard
- Richard Ian Cox - Nyan
- Marina Sirtis - Svetlana Markov
- David Paetkau - Lyle Pender
- Kirsten Zien - Nesa
- Fred Willard - Jacek
- Galyn Görg - Kendra
- Alvin Sanders - Fred
- Rick Worthy - K'tano
- Alisen Down - Dr. Brightman
- Tobin Bell - Omoc
- Fred Henderson - Robert Thornbird
- Paul Koslo - Terok
- Peter Stebbings - Malek
- Cameron Bright - Orlin
- Bobbie Phillips - Kynthia
- Sam J. Jones - Aris Boch
- Dom DeLuise - Urgo/Togar
- Colin Murdock - Ardal Hadraig
- Enrico Colantoni - Burke
- Cary-Hiroyuki Tagawa - Turghan
- Shane Meier - Garan
- Paul Anthony - Slave
- Noel Callahan - Boy
- Amanda O'Leary - Dr. Cole
- Sean Patrick Flanery - Orlin
- Don Stark - Sal
- John Mann - Luthor
- René Auberjonois - Alar
- Laurie Murdoch - Administrator Calder
- Sasha Pieterse - Grace
- Jerry Wasserman - Whitlow
- Michael Kopsa - General Kerrigan
- David Kaufman - Mark Gilmour
- Marilyn Norry - Hedrazar
- Derek Hamilton - Doug McNair
- Kristian Ayre - Loran
- Mark Acheson - Vishnoor
- Michael Rooker - Colonel Edwards
- Dan Castellaneta - Joe Spencer
- Earl Pastko - Colonel Zukhov
- Charles Shaughnessy - Alec Colson
- Brandy Ledford - Zarin
- Rodney A. Grant - Tonané
- William Atherton - Emissary Varta
- Stephen Holmes - Villager
- Cathy Weseluck - Resident #2
- Ron Halder - Cronus
- Keegan Connor Tracy - Dr. Redden
- Tony Todd - Lord Haikon
- Fred Applegate - Elrad
- Clare Carey - Kerry Johnson
- Mel Harris - Oma Desala
- Isaac Hayes - Tolok
- Scott Hylands - Timothy Harlow
- Ted Cole - Doctor #2
- Wayne Brady - Trelak
- Michael DeLuise - Nick Marlowe / Colonel Danning / Michael DeLuise
- JR Bourne - Martouf / Lantash
- Tom Butler - Major General Trofsky
- Robert Lewis - Peter Tanner
- David Kopp - Lieutenant Grogan
- Gwynyth Walsh - Kelmaa / Queen Egeria
- John Novak - William Ronson
- Saul Rubinek - Emmett Bregman
- Jolene Blalock - Ishta
- Ron Canada - Quartus
- Mark Holden - Korra
- Megan Leitch - Ke'ra
- Gavin Hood - Colonel Alexi Vaselov
- Soon-Tek Oh - Moughal
- Musetta Vander - Shan'auc
- Brad Greenquist - Dr. Keffler
- George Wyner - Al Martell
- Martin Cummins - Aden Corso
- Bill Dow - Bill Lee
- Terence Kelly - Miles Hagan
- Lorena Gale - Curator
- Katie Stuart - Cassandra
- Barry W. Levy - Major Hawkins
- Reed Diamond - Major Bryce Ferguson
- Dorian Harewood - Thoran
- Michele Greene - Laira
- Brian Markinson - Lotan
- Thomas Kopache - Ellori
- Salli Richardson-Whitfield - Drey'auc
- Michael Eklund - Dark-haired Man
- Daniel Bacon - Technician
- Sarah Douglas - Yosuuf / Garshaw of Belote
- Amy Sloan - Leda Kane
- Bonnie Bartlett - Linea
- Suanne Braun - Hathor
- Byron Chief-Moon - Elder #2
- Tom O'Brien - Brian Vogler
- Tony Alcantar - Dr. Myers
- Neil Jackson - Khalek
- Mitchell Kosterman - James Hamner
- Chris Owens - Armin Selig
- Ingrid Kavelaars - Erin Gant
- Larry Drake - Burrock
- Matthew Bennett - Jared Kane
- Andrew Jackson - Per'sus
- Kevin Durand - Zipacna
- Kavan Smith - Major Evan Lorne
- Holly Dignard - President's Aide
- Robert Foxworth - Chairman Ashwan
- David Richmond-Peck - Jaffa Commander
- Frank Roman - Rafael
- Danielle Nicolet - Reese
- Sarah Deakins - Tanis Reynard
- Dakin Matthews - Maz'rai
- Ona Grauer - Ayiana
- Terry Chen - Monk
- Kristen Dalton - Anna / Sekhmet
- Samantha Ferris - Dr. Raully
- Benjamin Ayres - Muirios
- Marc Worden - Ronan
- Christina Cox - T'akaya
- Blu Mankuma - Sheriff Knox
- Brenna O'Brien - Adria - Age 12
- Craig Fairbrass - Arkad
- John de Lancie - Frank Simmons
- Tahmoh Penikett - Third
- George Touliatos - Pyrus
- Julian Christopher - Vin Eremal
- Lawrence Dane - Major General Bauer
- John Billingsley - Simon Coombs
- Maury Chaykin - Nerus
- Joshua Malina - Cicero
- Phillip Mitchell - Jaffa #2
- Phillip Mitchell - Major Graham
- Tamsin Kelsey - Gairwyn
- Dean Stockwell - Doctor Kieran
- Jody Racicot - Vernon Sharpe
- Daniella Evangelista - Denya
- Kim Kondrashoff - Roshure
- George Dzundza - Jim / Anubis
- Rudolf Martin - Anateo
- Rod Loomis - Osric
- Dwight Schultz - The Keeper
- Julian Sands - The Doci
- Wallace Shawn - Arlos
- Eric Schneider - Dr. McKenzie
- Brendan Beiser - Weaver
- Colin Cunningham - Paul Davis
- Alonso Oyarzun - Punk Leader
- Alex Ferris - Andy Spencer
- Vanessa Angel - Anise / Freya
- Neil Denis - Rya'c
- Garwin Sanford - Narim
- David DeLuise - Pete Shanahan
- Matthew Glave - Paul Emerson
- Christopher Cousins - Ambassador Joseph Faxon
- Steven Williams - General Vidrine
- Dave 'Squatch' Ward - Antagonistic Bar Guy
- Jonathan Walker - Ta'Seem
- Michael Welch - Young Jack O'Neill
- Peter LaCroix - Ashrak
- Patrick McKenna - Jay Felger
- Colin Heath - Technician
- Christina Jastrzembska - Female Elder
- Robin Mossley - Malikai
- Ernie Hudson - Pernaux
- Greg Michaels - Jason Levinson
- Patricia Drake - Lucia Tarthus
- Christopher Gaze - Tevaris
- Kim Hawthorne - Kegan
- Ian Tracey - Smith
- Anna-Louise Plowman - Sarah Gardner / Osiris
- Anna-Louise Plowman - Sarah Gardner
- Gabrielle Miller - Thetys
- Bruce Harwood - Dr. Osbourne
- Dmitry Chepovetsky - Boris
- Jennifer Calvert - Ren'al
- William B. Davis - Damaris
- Haley Beauchamp - Sylvana
- James Earl Jones - Unas (Voice)
- Jill Teed - Yolanda Reese / Stacy Monroe
- Erica Durance - Krista James
- Carrie Genzel - Diana Mendez
- James McDaniel - General Francis Maynard
- Bruce Gray - Senator Fisher
- Hrothgar Mathews - Dr. Hamilton
- Ellie Harvie - Dr. Lindsey Novak
- Michael Ironside - Seevis
- Eric Keenleyside - Fred
- Michael Coleman - Med Tech
- David Nykl - Dr. Radek Zelenka
- Brook Susan Parker - Drey'auc
- Katharine Isabelle - Valencia
- Vince Corazza - Worrel
- Michael Tiernan - Horus Warrior
- Torri Higginson - Dr. Elizabeth Weir
- Julie Patzwald - Naytha
- Ben Bass - Dr. Steven Rayner
- Jason Calder - SF Guard
- Carla Boudreau - Oma Desala
- Malcolm Stewart - Dollen
- Rob Morton - Sheriff
- Venus Terzo - Francine Michaels
- Kwesi Ameyaw - Olokun
- Michael Dobson - Jaffa
- Henry Gibson - Marul
- Ian Buchanan - First
- Tamlyn Tomita - Shen Xiaoyi
- Tim Perez - Vashin
- Michael David Simms - Arthur Simms
- Benz Antoine - Driver
- Jano Frandsen - Dj'nor
- David Andrews - Se'tak
- Pablo Coffey - Vachna
- Jason George - Jolan
- Lisa Bunting - Claire Jackson
- David McNally - Hanno
- David McNally - Simon
- Louis Chirillo - Bert Simmons
- Adam Baldwin - Colonel Dave Dixon
- Sonya Salomaa - Charlotte Mayfield / Athena
- Ralph Alderman - Shop Owner
- Jeff Gulka - Charlie
- Frank Cassini - Sean Grieves
- William Russ - Jonas Hanson
- Allison Hossack - Zenna Valk
- Armin Shimerman - Anteaus
- Colleen Rennison - Ally
- Colleen Rennison - Cassandra
- Tabitha St. Germain - Byrsa Woman
- Nels Lennarson - Major Green
- Roger Allford - The President
- Paul Perri - Dr. Woods
- Kelly Dean Sereda - Lieutenant
- Paul McGillion - Young Ernest Littlefield
- Lucia Walters - Disciple
- Ian Robison - Security Officer
- Trevor Devall - Kvasir
- Michael Puttonen - Simian
- Chilton Crane - Sheila Jameson
- Joe Flanigan - Lt. Colonel John Sheppard
- John Noble - Meurik
- Tanya Reid - Rosha / Jolinar of Malkshur
- Veena Sood - Abydonian Leader
- Bob Frazer - Airman
- Louis Gossett Jr. - Gerak
- Nicole Oliver - Leedora
- Jay Acovone - Charles Kawalsky
- Jay Acovone - Captain Charles Kawalsky
- Bob Wilde - Priest
- Jim Thorburn - SF Guard #2
- Chris Kramer - F-302 Pilot
- Andrew Guy - Jaffa #1
- Samantha Kaine - Goa'uld Lieutenant
- Jessica Steen - Elizabeth Weir
- Tom McBeath - Harry Maybourne
- Zoran Vukelic - Jaffa
- Shaun Phillips - Jim
- Winston Rekert - Cordesh
- Carmen Moore - Laboratory Assistant
- D. Neil Mark - Frakes
- William Devane - President Hayes
- Steve Bacic - Camulus
- Steve Bacic - Major Coburn
- Andrew Airlie - Kalan
- Andrew Airlie - Dr. Carmichael
- Larry Cedar - Ori Prior #2
- Jodelle Ferland - Adria - Age 7
- Sarah Strange - Morgan le Fay
- Alessandro Juliani - Katep
- Alessandro Juliani - Eliam
- Charles Payne - Guard
- Harrison Coe - Alekos
- David Lovgren - Va'lar
- David Lovgren - Darrell Grimes
- Glynis Davies - Young Catherine Langford
- Glynis Davies - Ambassador Noor
- Roger Haskett - Doctor
- Roger Haskett - Dr. Thompson
- Shawn Stewart - Jaffa
- Alicia Thorgrimsson - Jaffa
- Adrian G. Griffiths - Lieutenant Baker
- Jorgito Vargas Jr. - Abu
- Adrian Holmes - Special Operations Sergeant
- Adrian Holmes - Detective Ryan
- Michael Philip - Jaffa #2
- Reg Tupper - Doctor
- Alan Rachins - Colonel Kennedy
- Alan Rachins - Young Doctor
- Andrew Kavadas - Olaf
- Andrew Kavadas - Zipacna's Jaffa
- Richard Leacock - Sergeant
- Richard Leacock - Colonel Brogen
- Georgia Craig - Sabrina Gosling
- Danny Wattley - Lieutenant Johnson
- Addison Ridge - Nafrayu
- Jane Spence - Nurse
- Biski Gugushe - SF Guard
- Duncan Fraser - Professor Langford
- Efosa Otuomagie - Security Police
- Nicole Rudell - Nurse
- Cory Monteith - Young Mitchell
- Gerard Plunkett - High Councilor Tuplo
- Anne Marie DeLuise - Farrell
- Anne Marie DeLuise - Amy Vandenberg
- Terry David Mulligan - David Swift
- Douglas Arthurs - Kah'l
- Douglas Arthurs - Heru'ur
- Tosca Baggoo - Tok'ra Council Woman
- Woody Jeffreys - Guard
- Peter Bryant - Hoskins
- Peter Bryant - Fro'tak
- Ray Xifo - Ohper
- Vincent Hammond - Unas
- Vincent Hammond - Big One
- Marshall R. Teague - Frank Cromwell
- John Tierney - Monk
- Marc Baur - Senior Cop
- Roger Cross - Lieutenant Connor
- Frida Betrani - Lya
- Richard de Klerk - Joe
- Richard de Klerk - Dominic
- Michasha Armstrong - Shak'l
- Rick Ravanello - Guard #2
- Wally Dalton - Sara's Father
- Stephen Tibbetts - Guard
- Bernie Neufeld - General's Aide
- Chief Leonard George - Elder #1
- Amber Rothwell - Jenny
- David Allan Pearson - Quinta
- Joy Coghill - Saroosh / Selmak
- J. B. Bivens - Guard #1
- Santo Lombardo - Bolaa
- Garvin Cross - Casey
- John 'Bear' Curtis - Primitive
- Sean Amsing - Tobay
- Anthony Ashbee - Soldier
- Elizabeth Hoffman - Catherine Langford
- Matthew Walker - Roham
- Matthew Walker - Merlin
- Sebastian Spence - Delek
- Erick Avari - Kasuf
- Kiara Hunter - Alien Princess
- Heather Hanson - Shyla
- Pamela Perry - Future Cassandra
- Andrew Wheeler - Major Stan Kovacek
- Kirby Morrow - Militia Man
- Kirby Morrow - Tara'c
- Brent C.S. O'Connor - Heren
- Alistair Abell - Ian Patterson
- Alistair Abell - Jayem Seran
- Britt Irvin - Merrin
- Mark Gibbon - Thor
- Mark Gibbon - M'zel
- Lachlan Murdoch - Tomin
- Darcy Laurie - Cave-Dweller
- Darcy Laurie - Tass'an
- Steve Makaj - Colonel Makepeace
- Steve Makaj - Colonel Robert Makepeace
- A.C. Peterson - Canon
- John R. Taylor - Elder
- Jason Schombing - Robert Rothman
- Marya Delver - Layale
- William deVry - Aldwin
- Bob Dawson - Bynarr
- Eli Gabay - Jumar
- Christine Kennedy - Young Samantha Carter
- Harley Jane Kozak - Sara O'Neill
- Harley Jane Kozak - Sara O'Neill (Uncredited)
- Marie Stillin - High Chancellor Travell
- Marcel Maillard - Paynan
- Jennifer Copping - Mallin
- Keene Curtis - Ernest Littlefield
- Keene Curtis - Dr. Ernest Littlefield
- Jan Rubeš - Nicholas Ballard
- Russell Roberts - Psychiatrist
- Kis Yurij - Yurij
- Tiffany Lyndall-Knight - La Moor
- Tiffany Lyndall-Knight - Evalla
- Adam J. Harrington - Goa'uld #2
- Adam J. Harrington - Khonsu
- Lauren K. Robek - Lieutenant Astor
- Alison Matthews - Brenna
- Willie Garson - Martin Lloyd
- David Abbott - David Jordan
- Obi Ndefo - Rak'nor
- Art Kitching - Ma'kar
- Patti Allan - Mrs. Kinsey
- Aaron Pearl - Major Kearney
- Aaron Pearl - George Hammond
- Tobias Mehler - Graham Simmons
- Tobias Mehler - Lieutenant Graham Simmons
- Elisabeth Rosen - Jennifer Hailey
- Belinda Waymouth - Ja'din
- Bill Croft - Sindar
- Tracey Hway - Hira
- Gillian Barber - Ambassador Dreylock
- Gillian Barber - Resident #1
- Gillian Barber - First Minister Dreylock
- Anastasia Bandey - Tok'ra #2
- Ken Kirzinger - Jaffa
- Ken Kirzinger - Ares' Jaffa 1 (Uncredited)
- John Prosky - Malchus
- Norman Armour - Dr. MacLaren
- Jen Halley - Lieutenant Tolinev
- Vitaly Kravchenko - Lieutenant Marchenko
- Garry Chalk - Colonel Chekov
- Robert Moloney - Borren
- Bill Marchant - Adrian Conrad
- Bill Marchant - Adrian Conrad / Goa'uld
- Link Baker - Artok
- Link Baker - Lieutenant Barber
- Peter Flemming - Malcolm Barrett
- Grace Park - Lieutenant Satterfield
- Suleka Mathew - Kali
- Sean Campbell - Solek
- Sean Campbell - Sergeant
- Christopher Kennedy - Larry Murphy
- Aleks Paunovic - Shaq'rel
- Daniel Cudmore - Jaffa
- Daniel Cudmore - Yu's Jaffa commander (Uncredited)
- Vincent Gale - Deputy / Agent Cross
- Peter Anderson - Richard Flemming
- Peter Wingfield - Hebron / Tanith
- Peter Wingfield - Tanith
- Ulla Friis - Shallan
- Joel Swetow - First Minister Valis
- Brent Stait - Louis Ferretti
- Brent Stait - Major Ferreti
- Doug Abrahams - Commander Hale
- Colin Lawrence - Warren
- Colin Lawrence - Sergeant Warren
- Colin Lawrence - SG-3 Leader
- Colin Lawrence - Major Lawrence
- Enid-Raye Adams - Jones
- Shannon Powell - Sixth
- Michael J Rogers - John Michaels
- Michael J Rogers - Major Escher
- Michael J Rogers - Colonel Richard Kendrick
- Stephen Park - Harrid
- Stephen Park - Controller
- Betty Linde - Mrs. Sharpe
- Johnny Cuthbert - Agent Devlin
- Dion Johnstone - Na'onak
- Dion Johnstone - Chaka
- Dion Johnstone - Wodan
- Dion Johnstone - Captain Warrick Trevor
- Dion Johnstone - Alien #2
- Dion Johnstone - Captain Nelson
- Dion Johnstone - Lieutenant Tyler
- Desiree Zurowski - Parey
- Desiree Zurowski - Minister Chaska
- Alejandro Rae - Alebran
- François Chau - Chinese Ambassador
- Alex Diakun - Tarek Solamon
- Miguel Fernandes - Commander Kalfas
- Victor Talmadge - Lord Mot
- Peter Kelamis - Dr. Langham
- Peter Kelamis - Coyle Boron
- Tom Scholte - Chazen
- Sarah Edmondson - Natania
- Karin Konoval - Dr. Sandy Van Densen
- Jan Bos - Ambassador Sevarin
- Christopher Heyerdahl - Pallan
- Aaron Craven - Kyle Rogers
- Aaron Craven - Matar
- James Parks - Pharrin
- Scott MacDonald - Gorlon Jarlath
- Jocelyne Loewen - Dr. Chloe Angstrom
- Christine Adams - Mala
- Aaron Douglas - Jaffa
- Aaron Douglas - Moac
- Kathleen Duborg - Neith
- Simone Bailly - Ka'lel
- Nigel Vonas - Ryk'l
- Ivan Cermak - Captain Hagman
- Ivan Cermak - Major Altman
- Elizabeth Weinstein - Emta
- Peter Kent - Kintac
- Peter Kent - Bak'al
- Julie Hill - Ginra
- Zak Santiago - Rogelio Duran
- Craig Erickson - Adal
- Todd Thomson - Ramius First Prime
- Katey Wright - Marci Wells
- Kira Clavell - Amateratsu
- Barclay Hope - Colonel Lionel Pendergast
- Arvydas Lebeliūnas - Anatole Konstantinov
- Timothy Webber - Commander Gareth
- James Kidnie - Soren
- Scott McNeil - Townsperson
- Scott McNeil - Kefflin
- Benita Ha - Brooks
- Christopher Attadia - Eric
- Kendall Cross - Julia Donovan
- Chris Shields - Captain Mike Shefield
- Mercedes de la Zerda - Kar'yn
- Royston Innes - Moloc
- Noah Dalton Danby - Cha'ra
- Nancy Sorel - Garan
- Françoise Robertson - Captain Daria Voronkova
- Deborah Theaker - Charlene Spencer
- David James Lewis - Cameron Balinsky
- Brian Jensen - Freyr (voice)
- Brian Jensen - Head Priest
- Greg Anderson - Ori Administrator
- Greg Anderson - The Administrator
- Greg Anderson - Ori Prior
- Greg Anderson - Webber
- April Telek - Sallis
- Kirsten Alter - Tok'ra #1
- Kirsten Alter - Jalen
- Chad Krowchuk - Gordie Lowe
- Kurt Max Runte - Kirkland
- Kurt Max Runte - Major Boyd
- Mark Houghton - Ori Prior
- Paul Moniz de Sa - Fannis
- Gardiner Millar - Yat'Yir
- Michael P. Northey - Inago
- Eileen Pedde - Major Gibson
- Malcolm Scott - Caius
- Morris Chapdelaine - Tenat
- Camyar Chai - Azdak
- Ian Butcher - Ori Prior
- Donald Adams - Latal
- Eileen Barrett - Birra
- Jarvis W. George - Volnek
- Yan Feldman - Til'vak
- Anna Galvin - Dr. Reya Varrick
- Tracy Westerholm - SF Guard
- Tracy Westerholm - Female Soldier
- Tracy Westerholm - Surveillance SF
- Tracy Westerholm - Technician #2
- Tracy Westerholm - Special Forces Soldier #2
- Ian Robinson - Frank Mitchell
- Peter DeLuise - Director / Peter DeLuise
- Peter DeLuise - Airman
- Peter DeLuise - SF Guard (Uncredited)
- Peter DeLuise - Tok'ra Guard
- Peter DeLuise - Lieutenant
- Peter DeLuise - Screaming Villager
- Peter DeLuise - Man Leaving Cafe
- Peter DeLuise - Young Urgo in Uniform
- Peter DeLuise - Free Jaffa (Voice only) (Uncredited)
- Peter DeLuise - Interviewer
- Peter DeLuise - Machine Gun Guard
- Eric Steinberg - Netan
- John Prowse - Colonel Pearson
- Chelah Horsdal - Lt. Womack
- Chelah Horsdal - Lt. Catherine Womack
- Doug Wert - Major Hadden
- Sean Millington - Ronac
- Sean Millington - SSgt. Peterson (Uncredited)
- Sean Millington - Slave in Turban (Uncredited)
- Ben Immanuel - Dr. Hutchinson
- Patrick Gilmore - Bernie Ackerman
- Toby Berner - Grimsby
- Barbara Kottmeier - Young Vala
- Julie Johnson - Young Carter
- Richard Whiten - Bo'rel
- Peter Benson - Devon
- Patricia Harras - Fake Carter
- Kevin McNulty - Dr. Warner
- Hawthorne James - Gavos
- Vaitiare Hirshon - Sha're
- Vaitiare Hirshon - Sha're / Amaunet
- Alexis Cruz - Ska'ara
- Alexis Cruz - Skaara / Klorel
- Adrien Dorval - Borzin
- Holly Ferguson - Lieutenant Evans
- David Adams - Expert
- Sheelah Megill - Maid Martha
- Dion Luther - Asgard Council Member (voice)
- Dion Luther - Mollem
- Yan-Kay Crystal Lowe - Nya
- Warren Takeuchi - Young Doctor
- Laara Sadiq - Technician #2
- Laara Sadiq - Technician
- Laara Sadiq - Technician Davis
- Laara Sadiq - Technican
- Quinn Lord - Child
- Kevin Conway - SG Leader
- Kyle Graham - Charlie O'Neill (Uncredited)
- Kyle Graham - Charlie O'Neill
- Gavin Buhr - Jaffa (uncredited)
- Ty Olsson - Jaffa #1
- Barbara Fixx - Rear Tech
- Beverley Breuer - Barkeep
- Michael Ryan - John Prior
- Michael Sunczyk - Vi'tak
- Judy Norton - Talia
- Aisha Hinds - Thilana
- James Purcell - Dr. Hershfield
- Michael Sorich - Dr. Bricksdale
- Richard Side - Actor
- David Palffy - Anubis
- David Palffy - Sokar
- Michael Chase - Chief of Staff
- Hiro Kanagawa - M. Wayne
- Maureen Thomas - Wendy Mitchell
- Richard Zeman - Lourdes Maylay
- Sean Allan - Chancellor
- Andy Thompson - Calvin
- Danielle Kremeniuk - Varina
- Beatrice Zeilinger - Cindy
- John Tench - Lizan
- Russell Ferrier - Michael Griff
- Ronny Cox - Senator Robert Kinsey
- G. Patrick Currie - Fifth
- G. Patrick Currie - Eamon
- G. Patrick Currie - Chaka
- Aaron Brooks - Nisal
- Alexandr Kalugin - Major Vallarin
- Matthew Harrison - Darian
- Adam Harrington - Actor
- Paul Jarrett - Science Candidate (Uncredited)
- Paul Jarrett - Special Agent Farrity
- Jonathan Holmes - Dr. Hugh Bricksdale
- Robert Wisden - Bert Samuels
- Fulvio Cecere - Colonel Davidson
- Mike Dopud - Eurondan Soldier
- Mike Dopud - Odai Ventrell
- Mike Dopud - Colonel Chernovshev
- Mike Dopud - Jaffa Guard
- Mike Dopud - Jaffa
- Conan Graham - NID Man
- Conan Graham - NID Agent
- Raoul Ganeev - Roadblock Soldier
- Raoul Ganeev - Lt. Colonel Sergei Evanov
- Dean Hinchey - Dr. Kevin Hartkans (Uncredited)
- Natasha Vasiluk - Nurse (Uncredited)
- Natasha Vasiluk - Natalia
- Ed Anders - Warehouse Guy (Uncredited)
- Michael Jonsson - Redmond
- Michael Jonsson - Jaffa
- Michael Jonsson - Juna warrior
- Michael Jonsson - Jaffa #1
- Ryan Jefferson Booth - Zarin's Jaffa
- Daryl Shuttleworth - Commander Rigar
- Daryl Shuttleworth - Commander Tegar
- Jason Emanuel - Joel Brecker
- Lucas Wolf - Jennings
- Lucas Wolf - Jennings/Jennings' Goa'uld
- Geoff Redknap - Jup
- Kristina Copeland - Second
- Kristina Copeland - Waitress
- Brian McCaig - Prometheus crew member (Uncredited)
- Melanie Blackwell - King Arkhan's servant
- Robert Bruce - Local
- Herbert Duncanson - SG Guard
- Herbert Duncanson - Grell / Douglas Anders
- Herbert Duncanson - Guard
- Christian Bocher - Major Newman
- Christian Bocher - Raymond Gunne / Dr. Levant / Christian Bocher
- Colleen Winton - Dr. Greene
- Colleen Winton - National Security Advisor
- Glen Brkich - Ares' Jaffa 3 (Uncredited)
- Joey Aresco - Mr. Parker/Parker's Goa'uld
- Allan Gray - Mr. Kent/Kent's Goa'uld
- Barry Nerling - Ares' Jaffa 2 (Uncredited)
- Barry Nerling - Ba'al Jaffa Vanguard Sentry 2 (Uncredited)
- Barry Nerling - Dakara Jaffa 2 (Uncredited)
- Barry Nerling - Free Jaffa 3 (Uncredited)
- Clayton Watmough - Airman McKay (Uncredited)
- Ernie Jackson - Sgt. Larson (Uncredited)
- Greg Zach - Dakara Jaffa 1 (Uncredited)
- Greg Zach - Zarin's Jaffa (Uncredited)
- Greg Zach - Dakara Jaffa (Uncredited)
- Dean Aylesworth - Old Anubis
- Kevan Ohtsji - Oshu
- Gentry Bromfield - Ba'al Jaffa Vanguard Sentry 2 (Uncredited)
- Gentry Bromfield - SGC Guard (Uncredited)
- Emy Aneke - Ba'al's Jaffa Commander
- Rik Kiviaho - Anubis
- Rik Kiviaho - New Anubis
- Darryl Scheelar - Man
- Darryl Scheelar - Cop
- Darryl Scheelar - Co-pilot
- Darryl Scheelar - Curren (Uncredited)
- Michael Adamthwaite - Her'ak
- Hector Navarro - TSgt. Kraushaar (Uncredited)
- Courtenay J. Stevens - Lieutenant Elliot
- Courtenay J. Stevens - Lieutenant Elliot, Lantash
- Anthony Ulc - Major Mansfield
- Anthony Ulc - Mansfield
- Kyle Cassie - Reynolds
- Kyle Cassie - Eurondan Soldier
- Uroš Ćertić - Free Jaffa 1 (Uncredited)
- Tommy Europe - Dakara's Jaffa Rebel (Uncredited)
- Scott Owen - Mackenzie
- Scott Owen - Sgt. Mackenzie
- Jay Williams - Ra
- Jay Williams - Yu's Manservant (Uncredited)
- Jay Williams - Tok'ra (Uncredited)
- Kimani Ray Smith - Ocker
- Benjamin Easterday - Free Jaffa Warrior (Uncredited)
- Benjamin Easterday - Free Jaffa (Uncredited)
- Benjamin Easterday - Ra's Jaffa commander
- Benjamin Easterday - Dakara Jaffa 4 (Uncredited)
- Darren Hird - General Hammond's Bodyguard (Uncredited)
- Giorgio Miyashita - Tara'c's sparring partner (Uncredited)
- Giorgio Miyashita - Ares' Jaffa Warrior (Uncredited)
- Giorgio Miyashita - Goa'uld in Male host (Uncredited)
- Christopher Pearce - Jake Bosworth
- Rachel Hayward - Carol Weterings
- Rachel Hayward - Guard
- Loyd Bateman - Free Jaffa (Uncredited)
- Loyd Bateman - TSgt. Chapman (Uncredited)
- Loyd Bateman - Jaffa Fighter (Uncredited)
- Lance Gibson - Harem Guard 1 (Uncredited)
- Everick Golding - Harem Guard 2 (Uncredited)
- Rick Pearce - Airman (Uncredited)
- Gaston Morrison - Swope (Uncredited)
- Tyler McClendon - Adam Banks
- Claude Knowlton - Doctor
- Eric Breker - Albert Reynolds
- Eric Breker - Colonel Reynolds
- Donna White - Wendy Mitchell
- Hugo Steele - Free Jaffa Warrior 1 (Uncredited)
- Hugo Steele - Ra's Jaffa Patrol (Uncredited)
- Hugo Steele - Free Dakara's Jaffa (Uncredited)
- Hugo Steele - Free Jaffa (Uncredited)
- Penelope Corrin - Dr. Lindsay
- Jason Benson - Dave
- Sean Arnfinson - Military Candidate 2
- Justin Doran - SF Guard (Uncredited)
- Martin Christopher - Kevin Marks
- Brahm Taylor - Villager
- Alex Zahara - Xe'ls
- Alex Zahara - Alien Leader
- Alex Zahara - Iron Shirt
- Alex Zahara - Motion Capture Warrior
- Alex Zahara - Alien Leader, Alien #1
- Alex Zahara - Shy One
- Alex Zahara - Warrick Finn
- Alex Zahara - Eggar
- Silya Wiggens - Therapist
- Mike Desabrais - Ver Eger Villager (Uncredited)
- Steve McMichael - Training Jaffa (Uncredited)
- James Chutter - SGC official (Uncredited)
- Craig Fraser - SGC Delegation Member (Uncredited)
- Tim Guinee - Tomin
- Artine Brown - Pilot
- Artine Brown - Ba'al's Jaffa (Uncredited)
- Simon Burnett - Free Jaffa Warrior (Uncredited)
- Johannah Newmarch - Sina
- David Bloom - Spellman
- David Bloom - Scavenger
- Rebecca Reichert - Fourth
- Peter Williams - Apophis
- Rob Lee - Major Pierce
- Rob Lee - Scientist
- Rob Lee - Colonel Ben Pierce
- Rob Lee - Major Ben Pierce
- Rob Lee - Pierce
- Jacqueline Samuda - Nirrti
- Joe Pascual - Medical Technician
- Troy Adamson - SG-2 Team Member
- Rob Fournier - Special Forces Commander
- Rob Fournier - Airman Mansfield
- Robert Farrell - SF Guard
- Nicholas Harrison - Knight (Uncredited)
- Nicholas Harrison - Red Guard #2
- Mar Andersons - Bob
- Mar Andersons - Air Force Official
- Josh Byer - Sergeant
- Anthony Montgomery - worker in Daniel Jackson's apartment
- Maria Luisa Cianni - Vyan woman
- Dillon Moen - Charlie O'Neill
- Fraser Aitcheson - Hathor's Jaffa
- Fraser Aitcheson - Free Jaffa 2 (Uncredited)
- Fraser Aitcheson - Free Jaffa (Uncredited)
- Fraser Aitcheson - Jaffa
- Fraser Aitcheson - Jaffa Commander
- Fraser Aitcheson - Apophis' Red Jaffa
- Fraser Aitcheson - Jaffa Guard
- Fraser Aitcheson - Orderly
- Fraser Aitcheson - Dakara Jaffa 3 (Uncredited)
- Fraser Aitcheson - Tagrean Worker
- Fraser Aitcheson - Jaffa Warrior
- Fraser Aitcheson - Anubis' Jaffa
- Fraser Aitcheson - Ares' Jaffa commander (Uncredited)
- Bill Nikolai - Technician Vern Alberts
- Nickolas Baric - SF Guard
- Martin Wood - Major Wood (Uncredited)
- Martin Wood - Firefighter
- Martin Wood - Rocket Technician
- Paul Wu - Airman Chu
- Paul Wu - De'vir
- Paul Wu - Mongol Rider
- D. Harlan Cutshall - Jaffa Commander
- Guyle Fraizer - Technician
- Brad Kelly - Jaffa
- Brad Kelly - Free Jaffa in a skirt (Uncredited)
- Frank Topol - Big Guy
- James Michalopolous - Leo
- James Michalopolous - Philips (Uncredited)
- Cam Cronin - Door Airman
- Brian Drummond - Attendant
- Dan Payne - Kull Warrior
- Dan Payne - Vala in Kull armor
- Dan Payne - Kull Warrior (Uncredited)
- Dan Payne - Anubis' Ashrak
- Dan Payne - Staff Sergeant Allan
- Dan Payne - Jaffa Commander
- Shawn Reis - Jaffa
- Shawn Reis - Jaffa Commander
- Michael Roselli - Free Jaffa (Uncredited)
- Michael Roselli - Jaffa
- Francis Boyle - Sgt. Peters
- Wren Roberts - Red Guard #1
- Dean Redman - SF Guard (Uncredited)
- Dean Redman - Lt. Woeste
- Chris Duggan - Heru'ur's Jaffa
- Gina Stockdale - Kinsey's Maid
- Norma Jean Wick - Reporter
- David Neale - Dialer
- Dan Shea - Sylvester Siler (uncredited)
- Dan Shea - Fireman Opening Station Door
- Liza Huget - Waitress
- Nancy Gates - Shifu
- Michelle Harrison - Assistant
- Yee Jee Tso - Technican
- Jenn Forgie - Technican
- June B. Wilde - Maid
- Keith Martin Gordey - Professor Monroe
- John DeSantis - Jaffa
- Paul Stafford - Jaffa
- Malik McCall - First Guard
- Sean Tyson - Barkeep, Agent Singer
- Sean Tyson - Unas
- Sean Tyson - TSgt. Mecker (Uncredited)
- Karen van Blankenstein - Nurse
- Benjamin Wilkinson - O'Brien
- Dario Delacio - Jaffa
- Rob Hayter - Marine (Uncredited)
- Rob Hayter - Sergeant
- Rob Hayter - SG Mortar Operator
- Rob Hayter - Orderly
- Rob Hayter - Prometheus Crew Member
- Dean Paul Gibson - Man From Store
- Ryan Christopher Keys - Unas
- Ryan Silverman - Tollan Guard
- Howard Siegel - Keel
- Paul Lazenby - Jaffa
- Paul Lazenby - Anubis' Jaffa (Uncredited)
- Paul Lazenby - Russian SG Team Member
- Paul Lazenby - Free Jaffa (Uncredited)
- Andrew Johnston - Doctor
- Robert Manitopyes - Guard
- Frank C. Turner - Homeless man
- Tamara Prescott - Dolores - Simmon's Secretary
- Sasha Piltsin - Driver
- Benjamin Ratner - Producer
- Don Thompson - Property Master
- Laura Drummond - Security Guard
- Keath Thome - Head SF
- Don LaFontaine - Wormhole X-Treme Trailer Announcer
- Joseph Mallozzi - Doughnuts guy
- Finn Michael - Guard
- Finn Michael - Councilman
- Finn Michael - Soldier
- Jeff Seymour - Mr. Black
- Ken Phelan - Food Server
- Simon Hayama - Jarren
- Michael Teigen - Telescope Guy
- Kyle Riefsnyder - SF Guard
- Carrie Anne Fleming - Assistant
- P.J. Johal - Jaffa
- Shaker Paleja - Jaffa
- Carrie Ritchie - Technician
- Michael Soltis - Medic
- Robert Thurston - Scientist
- Martin Sims - Jaffa
- Martin Sims - Dol'ok
- John Shaw - Dr. Friesen
- Carin Moffat - Snake Townsperson
- Christie Wilkes - Delivery Woman
- Patrick Gallagher - Jaffa Commander
- Michael Daingerfield - Jaffa
- Andrew Moxham - Pangar Sentry
- Jason Gaffney - Sanderson
- Catherine Lough Haggquist - Technical Sergeant
- Todd Hann - SF Sergeant Gibson
- Colby Johannson - SF Sergeant Finney
- Michael Karl Richards - Guardsman
- Raimund Stamm - Hitchhike Driver
- Brad Dryborough - Outta Control Driver
- Oleg Feoktistov - Man at Airport
- Mark Pawson - Secret Service Man
- Mark Pawson - Reporter
- Katina Robillard - Screaming Woman
- Yvonne Myers - Area 51 Technician
- L. Harvey Gold - Committee Member
- Dale Wilson - Committee Member
- Mi-Jung Lee - Reporter
- Simon Egan - SF Guard
- Daniel Pepper - Hospital SF
- Martin Evans - British Ambassador
- Paul Batten - French Ambassador
- Olga Cramer - Russian Aide
- Bruce Dawson - Crewman
- Gianna Patton - Nurse
- Gary Jones - Radio Dispatcher
- Cameron K. Smith - Jaffa Re' Lo
- Ray Galletti - Navigator Major Peter DeLouise
- David Hurtubise - Tomis
- David Hurtubise - Dr. Kleinhouse
- Stuart Gibson - Elder's Son
- Adrian Hough - Goa'uld Lieutenant
- Gregory Bennett - Lt. Col. Harlan Beck
- Tom Heaton - Werner
- Poppi Reiner - Pamela Ambrose
- Ed Hong-Louie - Zyang Wu
- Noah Beggs - Security Force Officer
- Colin Corrigan - Ninja Jaffa Leader
- Colin Corrigan - Team Leader
- Joey Shea - Young Pamela Ambrose
- Sheri Rabold - Physiotherapist
- Liam Ranger - Nevin
- Wendy Noel - Councilwoman
- Michael Robinson - Councilman
- Patrick Keating - Councilman
- Terrance Leigh - Jaffa
- Terrance Leigh - Abydonian
- Travis Webster - Tryan
- Ryan Drescher - Young Keenin
- Michael Gordin Shore - Lt. Menard
- Kirk Caouette - Lt. Ritter
- Allan Lysell - Del Tynan
- Kimberly Unger - Infirmary Nurse
- Kimberly Unger - Nurse
- Hillary Cooper - Receptionist
- Nick Misura - Taupen
- Lindsay Maxwell - La'el Montrose
- Tony Morelli - Jaffa
- Chris Sayour - Jaffa
- Cory Martin - Jaffa
- Victor Favrin - Chalo
- Miguel Castillo - Pedro
- Craig Veroni - Weapons Officer
- Sam MacMillan - Lt. Glenn
- Gerald Scarr - Alien
- Melanie Rees - Waitress
- Paul Norman - Apophis' Red Guard
- Alexander Mandra - Truck Ambusher
- Ken Jones - Cured Touched
- Randy Thompson - Cured Touched
- Scott Nicholson - Jaffa
- Trevor Jones - Unas
- Nicholas W. von Zill - Ori Guardsman (uncredited)
- Igor Morozov - Roadblock Soldier
- Igor Morozov - Russian Man
- Lillianne Lee - Kim Lam
- Zahf Paroo - Jamala
- Tobias Slezak - Tech Sergeant Dale James
- Christopher Redman - Airman Shep Wickenhouse
- Julius Chapple - Senior Airman Simon Wells
- Jim Byrnes - Documentary Narrator (voice)
- Martin Novotny - NID Interrogation-Room Guard
- Mikka Dargel - Kinsey's Aide Sara
- Dee Jay Jackson - Cab Driver
- Ron Blecker - SG-3 Airman
- Dean Devlin
- Robert C. Cooper
- Joseph Mallozzi
- Brad Wright
- Paul Mullie
- Michael Greenburg
- Peter DeLuise
Willie Garson hace el papel de Martin Lloyd.
Adam Baldwin hace el papel de Colonel Dave Dixon.
Ronny Cox interpreta a Senator Robert Kinsey en la serie.
Craig Erickson interpreta a Adal en la serie.
William Russ interpreta a Jonas Hanson en la serie.
Tamlyn Tomita interpreta a Shen Xiaoyi en la serie.
Marina Sirtis hace el papel de Svetlana Markov.
Tobin Bell interpreta a Omoc en la serie.
John Noble interpreta a Meurik en la serie.
Saul Rubinek hace el papel de Emmett Bregman.
Capítulo disponible en las siguientes plataformas:
