Trailer
Cast
Richard Carlson
Dr. David Reed
Julie Adams
Kay Lawrence
Richard Denning
Dr. Mark Williams
Antonio Moreno
Dr. Carl Maia
Bernie Gozier
Zee
Ricou Browning
The Gill Man In Water (uncredited)
Ben Chapman
The Gill Man On Land (uncredited)
Whit Bissell
Dr. Edwin Thompson
Art Gilmore
Narrator (voice) (uncredited)
Nestor Paiva
Captain Lucas
Rodd Redwing
Luis (uncredited)
Perry Lopez
Tomas (uncredited)