Marshall Campbell (1 episode)

Mr. Callender (1 episode)

Mr. Spelman

Arthur Gramble (1 episode)

Major General Leonard Onichimoski (1 episode)

Hunt Acrey (1 episode)

Dr. Daniel Waterston (1 episode)

Harold Rhodes

Ben Proctor (1 episode)

Dr. Henry Richards (3 episodes)

Dr. Jimmy Goldrich

Ronald Andersson

Hans

Mark Fox (1 episode)

Stanley Robman (1 episode)

D.D.A. Dan Morrison (1 episode)

Mac Lawton

Dr. William Crichton (1 episode)

Pe'Nar Makull (1 episode)

(1 episode)

Roy Hondo (1 episode)

James Allen Howard (1 episode)

Robert Denk

Marcus Hiller

John

James Ryerson (1 episode)

Ben Judson (1 episode)

Leo Vardian (1 episode)

Jesse Wilder

David Alcott (1 episode)

Warren Smyth (1 episode)

Dylan Elliott (12 episodes)

David Mason

Conway

Serge Markov (2 episodes)

Evan Stark

Evan Stark

Jerry

Tony Kirby

Julian

Martin Elson

George Bennett

Joe

Aleck Olson

Davy

Tick Gleason (1 episode)