The Green Slime

Robert Horton

Commander Jack Rankin

Luciana Paluzzi

Dr. Lisa Benson

Richard Jaeckel

Commander Vince Elliott

Bud Widom

General Jonathan B. Thompson

Ted Gunther

Dr. Hans Halvorsen

David Yorston

Lt. Curtis

Robert Dunham

Capt. Martin

Gary Randolf

Cordier

Jack Morrisey

Lt. Morris, Rocket Pilot

Eugene Vince

Technician

Don Plante

Technician

Linda Hardisty

Nurse