- Wilson Cleveland - Gonathan
- Kimberly Lewis - Therapist (voice)
- Mike Whaley - Mortimer
- Crista Elise Bergmann - Cheesybeards Patron
- Fernando Chien - Wade
- Kim Evey - Therapist (voice)
- Kim Evey - Tink's line-holder (uncredited)
- Kim Evey - Tink's line holder (uncredited)
- Paulina Logan - GameStop Shopper
- Amanda Moore - GameStop Shopper
- Cory Wyszynski - Guild Applicant
- Brooke Seguin - Teacher
- Rod Keller - Transvestite Hooker
- Will Gatlin - Barista
- Will Gatlin - Barista (uncredited)
- Carly Jones - Waitress
- Carly Jones - Waitress (uncredited)
- Shing Hwong - Coffeehouse Patron
- Jesse Mackey - Waiter
- Meredith Adelaide - Restaurant patron
- Michele Boyd - Riley
- Frank Ashmore - Ollie - Cheesybeard's Boss
- Frank Ashmore - Cheesybeard's Boss
- Tymberlee Hill - Jeanette
- Andre Meadows - Fluffykins
- Mike Rose - Valkyrie
- T.J. Rotell - Big Guy
- Teal Sherer - Venom
- Jenni Powell - Cheesybeards patron
- Jenni Powell - Maid
- Jenni Powell - GameStop Shopper
- Marshall McGehee - Cheesybeards patron
- Gabe Uhr - Convention Attendee
- Gabe Uhr - GameStop Shopper
- Viji Nathan - Zaboo's Mom
- Simon Helberg - Kevinator
- Andrew Law - Restaurant patron
- Andrew Law - Cheesybeards patron
- Andrew Law - Convention Attendee
- Jimmy Wong - Slacker #3
- Scott Hennelly - Workout Nerd
- Tony Janning - Doorman
- Tom Konkle - Parent
- Lamorne Morris - Craven
- Neo Edmund - Cosplayer
- Tay Zonday - Self
- Brent Spiner - Brent Spiner
- Rileah Vanderbilt - Princess Leia
- Nathan Fillion - Nathan Fillion
- Neil Gaiman - Neil Gaiman
- Maurissa Tancharoen - Alina
- Eliza Dushku - Eliza Dushku
- Colin Ferguson - Colin Ferguson
- Rick Fox - Rick Fox
- Beverly Reynolds - Restaurant patron
- Beverly Reynolds - Cheesybeards patron
- Beverly Reynolds - Convention Attendee
- Zachary Levi - Zachary Levi
- Kevin Sorbo - Kevin Sorbo
- Bonnie Burton - Bonnie Burton
- Tom Lenk - Tom Lenk
- Dichen Lachman - Dichen Lachman
- Chris Rymer - Master Chief
- Greg Collins - Greg Collins
- Brea Grant - Brea Grant
- Grant Imahara - Grant Imahara
- Jason Charles Miller - Jason Miller
- Richard Hatch - Richard Hatch
- Brandon Molale - Brandon Molale
- Wil Wheaton - Fawkes
- Thom Williams - Thom Williams
- Liz Katz - Convention Attendee
- Beau Ryan - Uber Nerd (uncredited)
- Sean Becker - Unicorn
- Sean Becker - Convention goer
- Stan Lee - Self
- Hayley Holmes - Rachel
- Aaron Jackson - Douche Gamer
- Aaron Jackson - Left 4 Dead Bill / Samurai
- Aaron Jackson - Waiter
- Aaron Jackson - Convention Attendee
- Aaron Jackson - Cheesybeards patron
- Mark Gantt - Chet Grunwald
- Mark Gantt - Chet Granwald
- Adam Levermore - Convention Attendee
- Jeremy C. Owens - Dark Horse Booth Host
- Jeremy C. Owens - Convention Attendee
- Jeremy C. Owens - Reno
- Lisa Fredrickson - Edith
- Clare Grant - Red Master Chief
- Milynn Sarley - Blue Master Chief
- Jillian Armenante - Lizette
- Erin Gray - Madeleine Twain
- Ashphord Jacoway - Ashphord Jacoway
- Ashphord Jacoway - Convention Attendee
- Hesley Harps - Lara / Tara Double
- Floyd Van Buskirk - John
- Doug Jones - Gerald
- Annie Sertich - Costume Official
- Todd Roy - Security Guard
- Diane Baldwin - Convention Attendee
- Kim Brunner - Convention Attendee
- Holly Conrad - Convention Attendee
- Jennifer Francisco - Convention Attendee
- Teresa Leong - Convention Attendee
- Lisa Curtis Saunders - Convention Attendee
- Tara Whitaker - Convention Attendee
- Tanner Anderson - Bully (uncredited)
- Jace Hall - Self
- Ted Michaels - Floyd Petrowski
- Justine Ezarik - Sabina
- Bryan Forrest - Water Archon
- Kari Swanson - Coral Sprite
- Brooke Leigh Thorne - Controller Grrl
- J. Teddy Garces - Bruiser
- Derek Basco - Roy
- Sujata Day - Sula Morrison
- Alexandra Hoover - Theodora
- Kim Evey
- Felicia Day
- Jonny Ramos
Wil Wheaton interpreta a Fawkes en la serie.
Sandeep Parikh interpreta a Zaboo en la serie.
Jeff Lewis hace el papel de Vork.
Amy Okuda interpreta a Tinkerballa en la serie.
Vincent Caso interpreta a Bladezz en la serie.
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