Huntz Hall

Horace Debussy 'Sach' Jones

Stanley Clements

Stanislaus 'Duke' Coveleskie

David Gorcey

Chuck

Eddie LeRoy

Blinky

Dick Elliott

Mike

Judy Bamber

Mabel

Byron Foulger

Satan

Ralph Sanford

Sam

Ric Roman

Tony

Joe Devlin

Al

Fritz Feld

Dr. Bluzak (uncredited)

Benny Rubin

Bernie (uncredited)

John Mitchum

Desk Sergeant (uncredited)

William Beaudine