Chevy Chase

Emmett Fitz-Hume

Dan Aykroyd

Austin Millbarge

Steve Forrest

General Sline

Donna Dixon

Karen Boyer

Bruce Davison

Ruby

Terry Gilliam

Dr. Imhaus

Frank Oz

Test Monitor

Vanessa Angel

Russian Rocket Crewperson

Bernie Casey

Colonel Rhumbus

Charles McKeown

Jerry Hadley

William Prince

Keyes

Bob Hope

Self