"Lum and Abner go to Washington to aid in the war effort by giving the government what they think is a good substitute for rubber--Abner's homemade licorice."
Chester Lauck
as Lum Edwards
Norris Goff
as Abner Peabody
Alan Mowbray
as Chester W. Marshall
Mildred Coles
as Jane Nestor - Marshall's Secretary
Roger Clark
as Robert Blevins
Sarah Padden
as Aunt Charity Speers
Matt McHugh
as Stranger in Park Renting 'Rooms'
Brooks Benedict
as First Hotel Desk Clerk (uncredited)
Chester Conklin
as Inventor with Pocket Machine Gun (uncredited)
Heinie Conklin
as Steve Reynolds - Station Agent (uncredited)
Jimmie Dodd
as Earl - Hick Townsman (uncredited)
Daniel Duncan
as Melvin Speers - Grandpappy (uncredited)
Ben Erway
as Congressman (uncredited)
Jack Gargan
as Reporter (uncredited)
Lloyd Ingraham
as Inventor with Parachute (uncredited)
Boyd Irwin
as Senator (uncredited)
Eddie Kane
as Department Store Manager (uncredited)
Wilbur Mack
as Inventor with Memory Tablets (uncredited)
Barbara Pepper
as Betty - Taxi Driver (uncredited)
Jack Rice
as Golf Hotel Desk Clerk (uncredited)
Cyril Ring
as Second Hotel Desk Clerk (uncredited)
Ben Taggart
as Senator Vickers (uncredited)
Minerva Urecal
as Mrs. Pomeroy (uncredited)
Ben Hersh
Producer
Lud Gluskin
Music Director
Duncan Mansfield
Editor
Hans Peters
Art Direction
Jack William Votion
Harry J. Wild
Director of Photography
Percy Townsend
Sound Recordist
Leonard Praskins
Screenplay
Roswell Rogers
Story
Ben Berk
Set Dresser
Edward James
Lucien Moraweck
Music
Ruby Rosenberg
Assistant Director
Ray McCarey
Director