Shipwreck survivors land on an uncharted island inhabited by prehistoric beasts.
James Arness
Kirk Hamilton
Kasey Rogers
Elaine Jeffries
Gloria Petroff
Janice Jeffries
Bill Kennedy
Martin Shannon
Pierre Watkin
Magistrate Jeffries
Tom Hubbard
John Hartley
Jane Harlan
Nancy Holden
Tom Monroe
Merchant Capt. Tallman
Rye Billsbury
Pirate Captain Hackett
Fred Kohler Jr.
Nat Mercer
Tim Graham
Salty
Richard Bartell
Mr. Davis
Robert Carson
Naval Capt. Allison
Joey Raye
Charlene Hawks
Charles Regan
Don Riss
Narrator
James Guilfoyle
Dr. Wakeland
Hank Mann
Cap Somers
Guy Bellis
[Credited, but edited]
Herman Cantor
Fuller - Sailor
