Curly Howard
— Curly
Larry Fine
— Larry
Moe Howard
— Moe
Vernon Dent
— Dr. Walters (uncredited)
John Tyrrell
— Dr. Lyman (uncredited)
Cy Schindell
— Butch - Kidnapper
Lynton Brent
— Spike - Kidnapper (uncredited)
Ned Glass
— Mr. Williams (uncredited)
Charles Dorety
— Pedestrian #3 (uncredited)
Ethelreda Leopold
— Waitress (uncredited)
Kit Guard
— Mobster
Harry Wilson
— Mobster