Glenn Ford

Character: Lt. J.G. Max Siegel

Gia Scala

Character: Melora Alba

Earl Holliman

Character: Adam Garrett

Anne Francis

Character: Lt. Alice Tomlen

Keenan Wynn

Character: Gordon Ripwell

Fred Clark

Character: Lt. Cmdr. Clinton T. Nash

Eva Gabor

Character: Deborah Aldrich

Russ Tamblyn

Character: Ens. Tyson

Jeff Richards

Character: Lt. Ross Pendleton

Mickey Shaughnessy

Character: Farragut Jones

Howard Smith

Character: Admiral Junius Boatwright

Romney Brent

Character: Mr. Alba - Melora's Father

Mary Wickes

Character: Janie

Jack Straw

Character: Lt. Cmdr. Gladstone

Robert Nichols

Character: Lt. Cmdr. Hereford

John Alderson

Character: Lt. Cmdr. Diplock

Jack Albertson

Character: Rep. George Jansen

Charles Watts

Character: Rep. Arthur Smithfield

Mike Steen

Character: Marine Orderly (uncredited)