A bitterly jealous sponge fisherman tries to sabotage a fellow diver.
Lon Chaney Jr.
as Mr. Demitri (as Lon Chaney)
Arthur Lake
as Pete
Lloyd Bridges
as Ray Douglas
John Qualen
as Capt. Athos
Dickie Moore
as George Athos
Eric Feldary
as Alex
Ian MacDonald
as Nick
Tanis Chandler
as Simi
Harry Cheshire
as Uncle Mike
