When scientists exploring the Amazon River stumble on a “missing link” connecting humans and fish, they plan to capture it for later study. But the Creature has plans of his own, and has set his sights on the lead scientist's beautiful fiancée, Kay.
Dr. David Reed
Kay Lawrence
Dr. Mark Williams
Dr. Carl Maia
Captain Lucas
Dr. Edwin Thompson
Zee
Chico
The Gill Man In Water (uncredited)
Narrator (voice) (uncredited)
Tomas (uncredited)
Dr. Matos (uncredited)
Luis (uncredited)
Old Man (uncredited)
The Gill Man On Land (uncredited)
