On screen
Cast
15 credited performers
Ross Hagen
Cort Eastman
Jeffrey Combs
Andrew Paris
Dawn Wildsmith
Eddy Colchilde
Robert Quarry
Prof. Strock
Susan Stokey
Denae Chambers
Sybil Danning
Alien Queen
Michelle Bauer
Cave Bunny
Russ Tamblyn
Bill
Artwork unavailable
Michael Sonye
Picnic Guy
Artwork unavailable
Victoria Alexander
Picnic Girl
Tony Lorea
Pedro
Artwork unavailable
Gary J. Levinson
Mutant
Artwork unavailable
Bob Ivy
Mutant
William Smith
Dr. Chambers
Artwork unavailable
Tricia Brown
Cavegirl