John Loder

Don Rainsford

Audrey Long

Ellen Trowbridge

Edgar Barrier

Erich Kreiger

Russell Wade

Robert Trowbridge

Russell Hicks

Mr. Whitney

Jason Robards Sr.

Captain

Gene Roth

Pleshke

Noble Johnson

Carib

Robert Clarke

Helmsman

James Dime

Bulgar

Edmund Glover

Quartermaster

Jimmy Jordan

Steward

Victor Romito

Mongol

Larry Wheat

(uncredited)

Bruce Edwards

Collins

Robert Wise