Penrod and Sam

Billy Mauch

Penrod

Frank Craven

Mr. Schofield

Spring Byington

Mrs. Schofield

Craig Reynolds

Roy Hanson

Harry Watson

Sam

Jackie Morrow

Rodney Bitts

Philip Hurlic

Verman Diggs

Charles Halton

Mr. Bitts

Bernice Pilot

Delia

Kenneth Harlan

Real G-Man

Matthew Beard

Buzz (uncredited)

Georgie Billings

Junior G-Man (uncredited)

Jack Cunningham

Jack (uncredited)

Alan Davis

Lefty (uncredited)

Ralph Dunn

Joe (uncredited)

Sol Gorss

Hanson's Driver

Mildred Gover

Mrs. Diggs (uncredited)

Edward Hearn

G-Man #2 (uncredited)

Stuart Holmes

Doctor (uncredited)

Robert Homans

Sheriff (uncredited)

Don Hulbert

Junior G-Man (uncredited)

Muriel Kearney

(uncredited)

Billy Lechner

Wienie (uncredited)

Jerry Madden

Slats Fogarty (uncredited)