Beneath the 12-Mile Reef

Robert Wagner

Tony Petrakis

Terry Moore

Gwyneth Rhys

Gilbert Roland

Mike Petrakis

J. Carrol Naish

Socrates Houlis

Richard Boone

Thomas Rhys

Angela Clarke

Mama Petrakis

Peter Graves

Arnold Dix

Jay Novello

Sinan

Jacques Aubuchon

Demetrios Sofotes

Gloria Gordon

Penny Petrakis

Harry Carey, Jr.

Griff Rhys

Rock Hudson

Narrator (uncredited)

Jack English

Doctor (uncredited)

William Johnstone

Crewman of 'Snapper' (uncredited)