Shirley Jones as Amy Martin

Gig Young as Key Weedon

Red Buttons as Flight Officer Simon 'Uncle Cy' Shelley

Carolyn Jones as Tandy Martin

Edgar Buchanan as Captain Martin / Gramps

Eddie Applegate as Yeoman Corker Bell

Edward Platt as Captain Haven Hitchcock

Bill Mumy as Alex Martin

Bryan Russell as Luke Martin

Robert Foulk as Policeman

Milton Frome as Fireman

Peter Robbins as Grover Martin

Brian Avery as Signalman (uncredited)

Tol Avery as Charlie (uncredited)

Danny Borzage as Observer at Car (uncredited)

John Brennan as Officer (uncredited)

John Burnside as Chief Petty Officer (uncredited)

Boyd Cabeen as Onlooker (uncredited)

Gene Coogan as Military Officer (uncredited)

Bill Couch as Clyde (uncredited)

Ken Delo as Crewman (uncredited)

Dennis Durney as Signalman (uncredited)

Michael Galloway as Lt. Burke (uncredited)

Jack Grinnage as Seaman (uncredited)

Barnaby Hale as Cmdr. Landry (uncredited)

George Holmes as Restaurant Patron (uncredited)

Hap Holmwood as Officer (uncredited)

Loren Janes as Hayward (uncredited)

Ken Kane as Onlooker (uncredited)

Ron Nyman as Restaurant Patron (uncredited)

Paul Power as Reporter (uncredited)

Jean Ransome as Observer at Scene (uncredited)

Ralph Reed as Seaman (uncredited)

Mitchell Rhein as Reporter (uncredited)

Ronnie Rondell Jr. as Jeep Driver (uncredited)

Clifford Sales as Seaman (uncredited)

James W. Standridge as U.S. Navy Signalman on Ship (uncredited)

Norman Stevans as Reporter (uncredited)

Ken Wales as Seaman Harris (uncredited)

Bill Welsh as Carson (uncredited)

Frank Wilcox as Bill (uncredited)

John Willis as Television Interviewer (uncredited)