Arnold Stang
Pretzie
Arnold Schwarzenegger
Hercules
D
Deborah Loomis
Helen Camden
James Karen
Professor Camden
E
Ernest Graves
Zeus
T
Tanny McDonald
Juno
H
Harold Burstein
Rod Nelson
Merwin Goldsmith
Maxie
George Bartenieff
Nitro
Taina Elg
Nemesis
M
Michael Lipton
Pluto
J
Jan Adams
W
William Bass
Rudy Bond
Ship Captain
Lane Carroll
T
Tony Carroll
Monstro
O
Oliver Clark
E
Erica Fitz
Venus
E
Erin Fleming
Frank Gio
D
Diane Goble
Diana
D
Dan Hamilton
Mercury
Richard Herd
Television Presenter
A
Audrie Magee
Michael Miller
R
Ronnie Richards
T
Tony Roland
Alex Stevens
V
Viola Swayne
M
Mark Tendler
Samson
D
Dennis Tinerino
Atlas
A
Alicia Vetcher
I
Iris Whitney
P
Parnell Hall
Man with Chariot (uncredited)
A
Abe Holiday
Scared Man on Harbor (uncredited)
Sam Stewart
Bear (uncredited)