Spike Jones as Lt. 'Mac' McGinty

Hugh O'Brian as Smitty

Buddy Hackett as Smokey Hinkle

Adele Jergens as Harry's Wife

Tom Brown as Capt. Bill Peters

Harry Cheshire as Commissioner Spencer

George Cleveland as Chief Rorty

Tristram Coffin as Tucker

John Cliff as Crane

Willis Bouchey as Mayor

Henry Kulky as Harry

Madge Blake as Mrs. Spencer - Fire Commissioner's Wife

Billy Barty as Clarinetist Inside Tuba

Stafford Repp as Coachman