as Benzino Napaloni, Dictator of Bacteria

as Uncle Oscar Smith

as Slob

as B. B. Brown

as Travis Hyle

as Self

as Tweedledum

as J. Paxton Miller

as Skip Hutton

as Dopey Hart

as Sol Beckworth

as Benzini Napaloni (archive footage) (uncredited)

as Al

as Boley Bolenciecwcz

as Luke

as Henry B. 'Wahoo' Jones

as Jack Ellery

as Mike 'Slug' Richards

as Steve 'Slim' Gogarty

as Joe Ballantine

as Corny Davis

as George Lewis

as Private Mulligan

as Mac

as Lanny Morgan

as Lew Layton

as Joe Spring

as Larry Martin

as Joe Cork

as Casey

as Migg Tweeny

as Eddie Doyle

as 'Shorty' Hoolihan

as Popsy

as Sam

as Bill Martin

as Voltaire McGinnis

as Bozo Evans

as Charlie Bayne

as Barney Shirrel

as Chick Parker

as Spud Miller

as Sgt. Dominick

as Nicky Nelson

as 'Cake' O'Hara

as Pete Monahan

as Whammo Lonsdale

as Joe Cooney

as Harry

as Honest "Ham" Hamilton

as Duke Taylor

as Bates

as Benny Day

as Searchlight Doyle

as Littleton Looney

as Lanny Morgan

as Eddie Burke

as Rusty Smith

as Marco Perkins

as Ben Barney

as Chuck Hadley

as Mike Kirby

as James "Jimmy" Williams, the reporter

as Self (archive footage) (uncredited)

as Jennifer

as Bangs Tucker

as Joe Kelsey

as William "Willie" Deming

as Dan Daley

as Tap-Tap Thompson

as Bilge

as Francis J. Finnegan

as Marty Martin

as Harry Calhoun

as Michael O'Rourke

as Happy Gallagher

as Jack Oakie

as Self - Watching Polo Match

as Self

as Himself / Master of Ceremonies / Fu Manchu's Victim (Murder Will Out) / Girls Gym Instructor (In a Girls' Gym)

as SS Henrietta Captain

as Alec Dugan

as Jerry Marlowe

as Searchlight Doyle

as Slip Riggs

as Jerry Craig

as (archive footage) (uncredited)

as Minor Role (uncredited)

as Frederick Martin Stevens

as Charlie Case

as Kelsey Jones

as Michael Sullivan

as Self (archive footage)

as Babe Barton

as Self (archive footage)

as Self

as Jack Oakie (uncredited)

as Michael Casey

as Napaloni - Dictator of Bactera (archive footage)