Barry

Henry

Sam Wells

Paul Stansy

Kotter

Grandpa

Gino

Abe Miller (2 episodes)

Mr. Carter

CG's Father (26 episodes)

Allen Dulles (2 episodes)

Tiberius (39 episodes)

George

Kenneth Pederson (1 episode)

The Pope's Cardinal

General Julian Byng

Caiaphas

Bob

Elliot Winthrop (1 episode)

(1 episode)

Willie Anderson (1 episode)

Thompson

Alderman Glickman (1 episode)

J. Pasternack (1 episode)

Prof. Hightower (1 episode)

Dr. Richards

Dr. Paul Breedlove (1 episode)

(1 episode)

Pediatric Doctor

Dr. Eldridge Hawke (1 episode)

Samuel Casey

Francisco Goya

Alec King

Morgan Kenworth (1 episode)

Henry Baker

Tim Bobek

Mentor (voice) (2 episodes)

J.J. Gallagher

Senior RCMP Officer (1 episode)

Mickey O'Brian (1 episode)

Francis

Edward Jordan

Mike Spracklen

(39 episodes)

Xavier (voice) (2 episodes)

Frank Davis

(1 episode)

Dr. Mims (1 episode)

Marshall McLuhan

Professor X (voice) (76 episodes)

Connolly

Lt. Col. Harfield

Arnold Fellows (1 episode)

Cantrell (2 episodes)

Alec King (91 episodes)

Tony Wilson

Eli Seibel

Commissioner Warner

Adrian Bouchard (1 episode)

(1 episode)

Joe Fenton (1 episode)

Paul Stevens

Paul Stevens (1 episode)

Mr. MacDonald

Thomas Sims (100 episodes)

Rev. Allan

William Lyon Mackenzie

Gary 'The Blacksmith' Black

Dr. Svarich

Luke (1 episode)

Luke