IMDb Page
  • Average Age of Cast at Release:
  • Cast Members Alive:
  • Gender Split (F:M):
  • Percent of Cast with Demo Info:
Profile Pic Name Character Birthday Deathday Age at Release
John Agar Prof. Clete Ferguson
Lori Nelson Helen Dobson
John Bromfield Joe Hayes
Nestor Paiva Captain Lucas
Grandon Rhodes Jackson Foster
Dave Willock Lou Gibson
Robert B. Williams George Johnson
Charles Cane Police Captain
Loretta Agar Woman on Boat (uncredited)
Bill Baldwin Patrol Boat Dispatcher (voice / uncredited)
Jere Beery Photographer (uncredited)
Ricou Browning The Gill Man (in water) / Lab Technician (uncredited)
Diane DeLaire Miss Abbott (uncredited)
Mike Doyle Cop (uncredited)
Clint Eastwood Jennings (uncredited)
Jack Gargan Skipper (uncredited)
Charles Gibb Cop (uncredited)
Brett Halsey Pete (uncredited)
Don C. Harvey Mac - Spotlight Party Leader (uncredited)
Tom Hennesy The Gill Man (on land) / Marineland Diver (uncredited)
Don House Diver (uncredited)
Robert F. Hoy Charlie (uncredited)
Ned Le Fevre Newscaster (uncredited)
Sydney Mason Police Announcer (uncredited)
Robert Nelson Dr. McCuller (uncredited)
Patricia Powers Girl in Convertible
Bert Stevens Search Party Member (uncredited)
Charles Victor Policeman (uncredited)
Robert Wehling Joe (uncredited)
James R. Wolfe Man at Tank (uncredited)