- Krista Nazaire - Belinda Conrad
- Jake Epstein - Mr. Munder
- Alexandra Beaton - Emma
- Janet Porter - Laura Hardy
- Jennifer Hsiung - Jesse Hooper
- Bill Lake - Ezra Collig
- Tara Patterson - Shawna Mayer
- Philip Williams - Wilt
- Ric Garcia - Stefan
- Stephen R. Hart - Tall Man
- Jim Codrington - Sam Peterson
- Sean Patrick Dolan - Ern Cullmore
- Tyler Murree - Aucoin
- Scott Edgecombe - Bill Cullmore
- Victor Ertmanis - Captain
- Goran Stjepanovic - Fisherman #2
- Jordan Kronis - Cory
- Nadine Hyatt - Police Officer
- Sana Asad - Flight Attendant
- Daveed Louza - Balloon Game Master
- Justin Landry - Ring Toss Game Master
- Joan Gregson - Anya Kowalski
- André Dae Kim - Billy
- Diego Fuentes - Desk Sergeant
- Alex Armbruster - Orderly
- Nadine Whiteman - Librarian
- Mark Sparks - Nigel
- Paul Rutledge - Phone Booth Man
- Fuad Ahmed - Tan Likely
- Frank Licari - Dean McFarlane
- Will Carr - Rosegrave Candidate
- Sean James - Adams
- Nick Alachiotis - Guard
- Hudson Greenough - Mr. Dukay
- Erin Noble - Cranky Assistant
- Rachel Drance - Stacy Baker/Anastasia Nabokov
- Matt Grant - Paramedic (uncredited)
- Philip Craig - George Estabrook
- Marvin Kaye - Sergei Nabokov
- Vijay Mehta - Ahmed Khan
- Saad Siddiqui - Rupert Khan
- Jennifer Vallance - Stacy's Aunt
- Dennis Mirkovic - Stacy's Uncle
- Natallia Poliveanii - Sonya (uncredited)
- James Tupper - Fenton Hardy
- Laara Sadiq - Mrs. Khan
- Linda Thorson - Gloria Estabrook
- Atticus Mitchell - JB Cox
- Alli Chung - Jesse Hooper
- Raven Dauda - Con Riley
- Tara Yelland - Olivia Kowalski
- Sima Sepehri - Angela Todd
- Leonidas Castrounis - Dennis Gilroy
- Mal Dassin - Mack Malone
- Madison Brydges - Vanessa Bender
- Brittany Raymond - Lola Burton
- Brynn Godenir - Vanessa Bender
- Gray Powell - George Estabrook
- Kaleb Horn - Tad Carson
- Noam Jenkins - Steve Shaw
- Ian Matthews - Tom Elroy
- Milton Barnes - Brian Conrad
- Michelle Giroux - Vivian Burelli
- Amanda Cheung - Erica
- Matilda Davidson - Tiffany Cohen
- Phi Huynh - Demon Masked Intruder
- Brooke Gamble - Student (uncredited)
- Michael Chan - Hotel Clerk
- Kim Nelson - Nurse Cody
- Raggy Sharma - Rosegrave Academy Student (uncredited)
- John Ng - Professor
- Fane Tse - Richards
- Carl Hines - Goon (uncredited)
- Matthew MacFadzean - Mayor Krassner
- Stephanie Moran - Young Gloria
- Sean Colby - Stavros Vasili
- John Daniel - Donald Dukay
- Jason Stone
- John Stone
- Casey Walker
- Jeff Renfroe
- Jeff Renfroe
- Melanie Orr
- Steve Cochrane
- James Hurst
- Sandra Chwialkowska
- Ken Cuperus
- Mike Kiss
- Madeleine Lambur
- Peter Mohan
- Joan Lambur
- Doug Murphy
- Pam Westman
- Athena Georgaklis
- Edo van Breemen
Rohan Campbell interpreta a Frank Hardy en la serie.
Alexander Elliot hace el papel de Joe Hardy.
Keana Bastidas interpreta a Callie Shaw en la serie.
Riley O'Donnell hace el papel de Biff Hooper.
Adam Swain interpreta a Chet Morton en la serie.
Bea Santos interpreta a Trudy Hardy en la serie.
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