Mickey Rooney
— Kermit 'Beetle' McKay
Buddy Hackett
— Seaman Admiral John Paul 'Ad' Jones
Joanie Sommers
— Nina Lloyd
Jackie Cooper
— Lt. J.S. Parmell - Psychiatrist
Roland Winters
— Capt. Bollinger
Richard Deacon
— Dr. Deckham
James Millhollin
— Imhoff
Elizabeth MacRae
— Susie
Gordon Jones
— Conroy
Gene Blakely
— Kemp
Alvy Moore
— Lipscott
King Calder
— Frank the Bartender
George Sawaya
— Simmons