Glenn Ford
Lt. J.G. Max Siegel
Earl Holliman
Adam Garrett
Anne Francis
Lt. Alice Tomlen
Keenan Wynn
Gordon Ripwell
Fred Clark
Lt. Cmdr. Clinton T. Nash
Jeff Richards
Lt. Ross Pendleton
Mickey Shaughnessy
Farragut Jones
Howard Smith
Admiral Junius Boatwright
Romney Brent
Mr. Alba - Melora's Father
Jack Straw
Lt. Cmdr. Gladstone
Robert Nichols
Lt. Cmdr. Hereford
John Alderson
Lt. Cmdr. Diplock
Jack Albertson
Rep. George Jansen
Charles Watts
Rep. Arthur Smithfield
Mike Steen
Marine Orderly (uncredited)