Quark

Richard Benjamin

Adam Quark

Tim Thomerson

Gene

Conrad Janis

Palindrome

Richard Kelton

Ficus Pandorata

Patricia Barnstable

Betty

Cyb Barnstable

Betty

Alan Caillou

The Head

Bobby Porter

Andy

Barbara Rhoades

Acting

Daina House

Acting

Susan Backlinie

Guard #1

Buck Henry

Dignitary (uncredited)

Kirstie Alley

Handmaiden (uncredited)

Ann Prentiss

Gene /Jean (voice) (uncredited)

Richard Devon

Captain

Denny Miller

Zoltar