Fleet Admiral Hood (1 episode)

Mr. X

Ulim

Klaus Rhinehart (1 episode)

Historian

Mr. Marlowe

Self (2 episodes)

Murray Stuart

Bill Weldon

Henri (voice)

Julius (1 episode)

Unnamed

Jonah Pryce

Jonathan Tisdale (1 episode)

Mr. Carl Bollenbecker

Senator John Russell, Sr.

Stan Curtis

Secretary Bayer

Judge Walter Thornburg (1 episode)

Robert Stanley (1 episode)

(1 episode)

Defense Attorney Paul Lyman (1 episode)

Andrew Keener (1 episode)

Sam Fermoyle

Joseph Hepburn

Thorvald

Jason Reynard (1 episode)

Dr. David Bowman

Glenn / The Next One

Dr. Steiger

Julian Bedford

Cliff Letterman

Mr. Smith

Thomas Grambell

Devon

Devon

General Custer

Dominic Lyall

Eric

Magnus Lofting

Lewis

Dr. David Priestly

Dr. David Priestly

Johnny Morrison

Anthony Kirk (1 episode)

Self (1 episode)

Peter

Garry

Devon (16 episodes)

Rick Dylan

Dr. Stevens

Oscar Minno

Montserrat

Christofer Perdeger

Marquis de Sade

Dr. David Bowman

Self (1 episode)

Paul Grenfell

Clay Anderson Jr.

Stephen Lake

Self (1 episode)

Adam (1 episode)

Aldo

Pvt. Doll

Lee Carey

(1 episode)

(1 episode)

Bob Jolley (1 episode)

David Clemens

Lieutenant (1 episode)

Alec Benson (1 episode)

Eddie Phillips (1 episode)

Frank (1 episode)

(2 episodes)

(1 episode)

Billy Lee Jackson

Elisha (1 episode)

Elisha

(1 episode)

Les Gerrick (1 episode)

Joseph Ross (1 episode)

(1 episode)

German Pilot