narrator (5 episodes)

Jimmy Keating

Dr. Titan

Seymore Little (1 episode)

Narrator (voice) (1 episode)

Dr. Gerald Klooster

Ron Melville

Frank Dougherty

Dr. Wellin

Dr. Will Berter

(8 episodes)

Dr. Ferrand (2 episodes)

Earl Clayburn

(45 episodes)

Seyetik (1 episode)

Matthew

Jurassic Park Tour Voice (voice)

Hayden Langston (2 episodes)

Archer Bowman

Dr. RJ Cannon

Chief Justice Earl Warren

Chief Justice Earl Warren (2 episodes)

Chalk Brighton

The Magician

J. Fred Buzhardt

Sam Morrissey

Narrator

Self - Nominee (1 episode)

Joe Gardner (22 episodes)

Joe Gardner (3 episodes)

The Cosmos (voice)

Sir Lancelot du Lac (segment "The Last Defender of Camelot") (1 episode)

Gunther Hartog (3 episodes)

Col. Grangerford

Narrator (7 episodes)

Self - Narrator (1 episode)

George Hollis

Claudius (5 episodes)

Richard Bravo

Matt Carmichael (1 episode)

Narrator (voice)

Sir Simon De Canterville

George Mason (3 episodes)

Paddy Cleary (4 episodes)

Rev. Gus Keiffer

Lyman Jones

Thomas J. Kingsley

Arthur

Nick

Mr. Dunn

Rev. Ellis (2 episodes)

Sam Patton (1 episode)

Timothy Macahan

Narrator (2 episodes)

(1 episode)

Jess Birdwell

The Pilot

(1 episode)

Robertson

Mark Halperin (1 episode)

Self (2 episodes)

Introduction Narrator (voice) (uncredited) (1 episode)

DA Dan Bellington

Ralph Burke (1 episode)

Jay Follet (1 episode)

Jay Follet

Frank Manning

Self - Guest (1 episode)

Dr. Thomas Patton (1 episode)

Robert Harmon

Sheriff Gideon Yates (1 episode)

Vincent Warren (1 episode)

Lewis Stark (1 episode)

Tom Lynott (1 episode)

Bohannan (1 episode)

Will Stambridge (1 episode)

King Ethelred

Arlen McKittrick (1 episode)

Dr. Judson Strode (1 episode)

SS-Gruppenführer Helmut Arndt / Josef Strobe

(1 episode)

Woodrow Wilson King

(2 episodes)

Self (3 episodes)

(2 episodes)

John Streyer (1 episode)

Dr. Herbert Barth (1 episode)

Frederic Oliver Scott (1 episode)

(1 episode)

Self (1 episode)

Self (1 episode)

Lou Franklin (1 episode)

(1 episode)

Col. Edwin L. Drake (1 episode)

Jim Derry (1 episode)

Doug Crawford (1 episode)

Fred Carroll (1 episode)

George Helber (1 episode)

Acting Governor White (1 episode)

Harvey Slaughter (1 episode)

Self - Singer (1 episode)

Self - Performer (2 episodes)

Self - Presenter (1 episode)

Self - Winner (1 episode)

Harry Adams (1 episode)

Peter

Merritt Blake

Bob Lyttleton

John Patterson

Charley Kincaid (1 episode)

(1 episode)

Joshua Y. Edwards

Fred Staples

Walter Crandall (1 episode)

(1 episode)

(3 episodes)

(1 episode)

Joey

(1 episode)

Pvt. Coke

(1 episode)

Actor (1 episode)

The Prosecuting Attorney (1 episode)

James G. Kent

Dan (1 episode)

(1 episode)

Joe (1 episode)

Edward Dean (1 episode)

Fred Baxter (1 episode)

(2 episodes)

Jim Colton (1 episode)

Calvin (1 episode)

Julian Hurst (1 episode)

Ralph Johnson (1 episode)

Merrick (1 episode)

Richard Baker (1 episode)

Tom Clancy

(3 episodes)

Webb Wilson (1 episode)

(61 episodes)

(2 episodes)

(10 episodes)

Fred Staples (2 episodes)

Frederick Banting (1 episode)

Artaban (1 episode)

Hacker (1 episode)