比尔·威廉姆斯

Bill Williams

饰：Capt. Mead Ralston

诺玛·韦斯特

Norma West

饰：Jan Ralston

约翰·凯尼

John Cairney

饰：Dr. Steven Thomas

Jeremy Longhurst

Jeremy Longhurst

饰：John Saunders, Chief Engineer

唐纳德·丘吉尔

Donald Churchill

饰：Carl Wolcott

Kathleen Breck

Kathleen Breck

饰：Kate Saunders

Margo McLennan

饰：Joyce Wolcott (as Margo Mayne)

Linda Marlowe

饰：Dr. Helen Thomas

John Lee

饰：Dr. Garth

Andrew Downie

饰：Capt. Burnett (Spacestation)

马克·莱斯特

Mark L. Lester

饰：Don Saunders

Stuart Middleton

Stuart Middleton

饰：Michael Thomas

Anthony Honour

Anthony Honour

饰：Robert Wolcott

Chuck Julian

饰：Webster

Max Kirby

饰：Ho-Ho the Holograph Clown

Tony Doonan

饰：Dr. Griffith