Amanda Tapping
Dr. Helen Magnus (20 eps)
Robin Dunne
Dr. Will Zimmerman (20 eps)
Christopher Heyerdahl
John Druitt / Bigfoot (20 eps)
Ryan Robbins
Henry Foss (20 eps)
Agam Darshi
Kate Freelander (20 eps)
Ian Tracey
Adam Worth (6 eps)
Robert Lawrenson
Declan Macrae (5 eps)
Pascale Hutton
Abby Corrigan (4 eps)
Paul McGillion
Terrence Wexford (2 eps)
Sahar Biniaz
Kali (2 eps)
Byron Chief-Moon
Spirit Being (2 eps)
Martin Christopher
Father Clark (2 eps)
Valin Shinyei
Beza (2 eps)
Nels Lennarson
Commander Toland (2 eps)
Polly Walker
Ranna Seneschal (2 eps)
Ron Selmour
Kanaan (2 eps)
Pauline Egan
Erika Myers (2 eps)
Peter Wingfield
Dr. James Watson (2 eps)
Vincent Gale
Nigel Griffin (2 eps)
Shaker Paleja
Dr. Ravi Ganapathiramani (2 eps)
Matty Finochio
Virgil St. Pierre (2 eps)
Françoise Yip
Dr. Lillian Lee (2 eps)
Jody Thompson
Fallon (2 eps)
Terry Chen
Charles (1 eps)
Callum Blue
Edward Forsythe (1 eps)
Hamza Adam
Helmsman (1 eps)
Bal Nagra
Janu (1 eps)
Ian Neeson
Captain (1 eps)
Bhavkhandan Singh Rakhra
Grand Father (1 eps)
Rimple Sumer
Distraught Woman (1 eps)
Nimet Kanji
Pili (1 eps)
Eric Keenleyside
Detective Michael Bronson (1 eps)
Peter Flemming
FBI Special Agent Bruce Tanner (1 eps)
Chasty Ballesteros
Bridget (1 eps)
Raquel Riskin
Cheryl (1 eps)
Jason Poulsen
Dave (1 eps)
Tobias Slezak
Adam (1 eps)
Gary Jones
George (1 eps)
Mary Black
Grace (1 eps)
Robin Mossley
Thomas (1 eps)
Michael J Rogers
Detective Stanley O'Farrell (1 eps)
Benita Ha
Shirley Wilkins (1 eps)
Jorgito Vargas Jr.
Danny Stephano (1 eps)
Fabrice Grover
Father Nathaniel Jensen (1 eps)
Chris Gauthier
Walter (1 eps)
Michael Adamthwaite
Trace (1 eps)
Tim Fellingham
Brad (1 eps)
Robert Clarke
Scientist (1 eps)
Adrian Hough
Liam (1 eps)
Patrick Keating
Joe (1 eps)
Allison Hossack
Lillian (1 eps)
Chris Nowland
Orderly (1 eps)
Brent McLaren
Orderly (1 eps)
Duncan Fraser
Prime Minister (1 eps)
Margot Berner
Imogene (1 eps)
Denton Winn
Angelo (1 eps)
John Emmet Tracy
British Museum Curator (1 eps)
Sylvesta Stuart
Seralops Abnormal (1 eps)
Scott McNeil
Birot (1 eps)
Luvia Petersen
Narra (1 eps)
Alexander Kambolis
Linor (1 eps)
Edward Foy
Horatio Gibbs (1 eps)
Tinsel Korey
Sioux (1 eps)
James Pizzinato
Koda (1 eps)
Chuck Campbell
Two Faced Guy (1 eps)
Peter DeLuise
Ernie Watts (1 eps)
Rob Hayter
Mothman (1 eps)
Aliyah O'Brien
Afina (1 eps)
Douglas O'Keeffe
Col. Franz Korba (1 eps)
Erin Lacourciere
Jeanette Anaise (1 eps)
Aaron Brooks
Lieutenant Hallman (1 eps)
Juan Riedinger
German Major (1 eps)
Richard de Klerk
U.S. Sergeant (1 eps)
Colleen Winton
Anna (1 eps)
Nic Rhind
Lieutenant (1 eps)
Jordana Largy
Josie (1 eps)
Barclay Hope
Security force commander (1 eps)
Marvin Ishmael
Ravi (1 eps)
Andrew Halliwell
French Man (1 eps)
Elysia Rotaru
French Woman (1 eps)
Tom McBeath
General Villanova (1 eps)
Greyston Holt
Lt. Coxswell (1 eps)
Adam Copeland
Thelo (1 eps)
David Milchard
Garris (1 eps)
Fraser Aitcheson
Herusan (1 eps)
Michael Patric
Alistair (1 eps)