Clint Bowers (8 episodes)

Jim

Walter (3 episodes)

Jimmy McKay (4 episodes)

Roman Sionis / Black Mask (9 episodes)

Paul

Viktor Maddox (1 episode)

Inspector Doug Grady (1 episode)

Wesley Cumbo

Calix Niklos (9 episodes)

Captain Stephen Littlefield (1 episode)

Tanner Donovan (1 episode)

Frank

The Conductor (3 episodes)

Nic Kohl

Christian

Paul Reynolds (8 episodes)

Dr. Miro

James Casey (5 episodes)

James Casey (uncredited) (1 episode)

Captain Martens (4 episodes)

Phill Brill (3 episodes)

Eli Voss (6 episodes)

Richard

Charlie Langdon (4 episodes)

General Davies (9 episodes)

Thomas Edison (1 episode)

Host (4 episodes)

Ashbel Whitman (10 episodes)

Detective Al Gorski (8 episodes)

August

Elliot Jones (3 episodes)

Father Keegan (1 episode)

Aramas (5 episodes)

Henrik "Hank" Johanssen (5 episodes)

Henry (1 episode)

Bob Corbett

Bruce

Silverfox (uncredited) (1 episode)

Silverfox (2 episodes)

Travis Grady

Keith Hoyt (1 episode)

Bob Corbett (18 episodes)

George Brown

Magnus Elphrenson (2 episodes)

Ari Tasarov (18 episodes)

Walter

Dan Farmer (8 episodes)

William Easton

Captain Jack Colvin

Walter Volcek (1 episode)

Detective Ryan Johnson

Brad Borden (1 episode)

Brad (voice) (1 episode)

Malcolm Dawkins (1 episode)

Dr. Reyes (1 episode)

Peter Varland (6 episodes)

Officer Wayne

Charlie Manning

Denis Teague

Al Burton

Deputy Hecker

Alec Becker (2 episodes)

Dumbrowski

Curt Bonner

Detective William Murdoch

Gordon Wintrob

Styles

Randy Cioffi (2 episodes)

David Sandström (52 episodes)

Clark White (1 episode)

Earl

Detective William Murdoch

Detective William Murdoch

Detective William Murdoch (3 episodes)

Dr. Milton Bradshaw (3 episodes)

(4 episodes)

Jerry Weicker (4 episodes)

Dale Robertson (1 episode)

Jason Herlock (1 episode)

Dave Miller

Nick Simms

Ronnie Stark (2 episodes)

Gord Black

Everette Hatch

James Lennox

Trevor McDowell (1 episode)

Jim Coutts

Theodore Gray

Detective Bob Kozlowski

Tyrone Fox (3 episodes)

Joe (1 episode)

Bob Kozlowski

Alex

Robert Kiely

Roger Deacon

Sergei Kirov

Lee Nash

Special Agent Sean Donahue

Felder

(uncredited)

Judy

John Rank, Sagan Cocommander

Agente especial Barry Baldwin (8 episodes)

Agent Barry Baldwin (22 episodes)

John Manning (22 episodes)

Roger (1 episode)

Jack Bolinas

Jim O'Neil

Sergei

Matt

William Johnson

Ned (1 episode)

Jules

Adam

Eddie

Paul Kinman (1 episode)

Dr. Andy Groenig (1 episode)

Zach Griffiths (1 episode)

Scientist (1 episode)

Ned Bailey (1 episode)

Thomas Benti

Count Marek (1 episode)

Greg

Young Thomas Constantine (1 episode)

Paul Temple

Sloan

John Cheever

Johnny

Josef Grool

Stephen Davis (1 episode)

Talbot (1 episode)

Zane Platt (3 episodes)

Jesse (1 episode)

Jeff Hartley (9 episodes)

Dylan Wiatt

Rick (1 episode)

Bill Godwin (1 episode)