Police Sergeant Larsen
Boss Stinger
Garrity
Gum Chewer
Luke Phelan
Mr. Train
Job Seeker
Gregor Garrison
Capt. Kenneth Cragis
Clint Farrell
China
John Briggs
Cheney Holland
T.J. Brennon
Mike McGowan
The Monster
Early Man
Henchman Walt
Ralph Farley
Sheriff Jack Haines
Marion A. Ross
The Gill Man (on land)
Dooley Brion
Col. William Travis
Captain Fathom
River Pirate (uncredited)
