Walter Pidgeon

Admiral Harriman Nelson

Robert Sterling

Captain Lee Crane

Barbara Eden

Lieutenant Cathy Conners

Peter Lorre

Comm. Lucius Emery

Joan Fontaine

Dr. Susan Hiller

Michael Ansara

Dr. Miguel Alvares

Frankie Avalon

Lieutenant Chip Romano

Regis Toomey

Dr. Jamieson

John Litel

Vice Admiral B.J. Crawford