Albert Brooks
Robert Cole
Kathryn Harrold
Mary Harvard
Bruno Kirby
Jay
James L. Brooks
David
Bob Einstein
Sporting Goods Salesman
Jane Hallaren
Ellen
Albert Henderson
Head Mixer
George Kennedy
George Kennedy / Zeron
Thelma Leeds
Mother
Jerry Belson
Jerry
Paul Bryar
Man in Phone Booth (uncredited)
Mike Road
Spaceman (uncredited)
Meadowlark Lemon
Himself
Tyann Means
Waitress
Karen Chandler
Neighbor
Dennis Kort
Health Food Salesman
Virginia Feingold
Bank Receptionist
Candy Castillo
Drugstore Manager
Rick Beckner
Zeon
Harvey Miller
Harvey (as Harvey Skolnik)
Ed. Weinberger
Ed
Clifford Einstein
Music Mixer
Gene Garvin
Sound Effects Mixer
Hugh Warden
Bank Dick
Kelly Ann Nakano
Hostess
Joe Bratcher
Jim
George Sasaki
Japanese Businessman
Victor Toyota
Japanese Businessman
Roger Ito
Japanese Businessman