Tom Tryon

Capt. Richmond Talbot

Brian Keith

Maj. Gen. John M. Vanneman

Edmond O'Brien

McClosky - aka 'Mac'

Dany Saval

Lyrae

Bob Sweeney

Sen. Henry McGuire

Kent Smith

Secretary of the Air Force

Tommy Kirk

Walter Talbot

Simon Scott

Medical Officer

Bert Remsen

Agent Brown

Sarah Selby

Mrs. Celia Talbot

Dick Whittinghill

Col. Briggs

Robert Brubaker

Space Flight Technician

Walt Davis

Air Force Officer

Douglas Evans

Colonel

Sally Field

Beatnik Girl in Lineup

Michael Garrett

Control Board Technician

Bob Hastings

Motorist

Jonathan Hole

Hotel Clerk