Dr. James Lynch

Hauser

Mason

FBI Agent Moss (1 episode)

Mark Simon (8 episodes)

Ed Finley

Henrik

(7 episodes)

Major Stevens

Superintendent Paul Knox (1 episode)

Viper

Jacob

Richard Orden

Leon Barrett (1 episode)

Dan

Jim Huden

Eric

Pastor Dean Carver

Duke (6 episodes)

Anders

Postman

Steve

Duke

Dimi 1 (1 episode)

Dimitri Kadmin (1 episode)

David Ramsey (5 episodes)

Santos Alvarez

Goran (4 episodes)

Randy Lane (1 episode)

Derek

Cafferty

Alar of Caer Caladh (8 episodes)

Steve Trevor (voice)

Steve Trevor (voice) (1 episode)

Clifford Perry

Alar

Officer Jack Beaumont (2 episodes)

Michael Hastings (1 episode)

Gadreel (4 episodes)

Ezekiel (1 episode)

Chris

Emerson

DA Jacob Waring

Tom Salvati (1 episode)

Jim Martin (5 episodes)

Cole Maddox (2 episodes)

Dwayne

Jimmy Brand

Simon Crocker (1 episode)

Francis

Lt. Kurtis Stryker (2 episodes)

Pete (1 episode)

(2 episodes)

Matt Ellman

Karl Agathon (archive footage) (uncredited)

Troy Hammerschmiddtt (voice) (4 episodes)

Paul Ballard (25 episodes)

(1 episode)

Henry

Lt. Karl 'Helo' Agathon

Wilson

The Firefighter - Brett Hall

Young Leo (segment "Stanley's Girlfriend")

Stanley

Greg

Noah Hamilton

Karl 'Helo' Agathon (73 episodes)

Vince Davis (2 episodes)

Wes Keenan (1 episode)

Sheriff (1 episode)

Karl 'Helo' Agathon (2 episodes)

(1 episode)

Third (1 episode)

Park Ranger

ND Cop (1 episode)

Eric Forester (1 episode)

(98 episodes)