Curly Howard
— Dr. Curly
Larry Fine
— Dr. Larry
Moe Howard
— Dr. Moe
Isabel La Mal
— Mrs. Bedford (uncredited)
Cy Schindell
— Dognapper Tony (uncredited)
Lynton Brent
— Dognapper Duke (uncredited)
Libby Taylor
— The Maid (uncredited)
Beatrice Blinn
— Nurse with saint bernard (uncredited)
Robin Raymond
— A Nurse (uncredited)
Beatrice Curtis
— A Nurse (uncredited)
Ethelreda Leopold
— A Nurse (uncredited)
Dorothy Moore
— Nurse (uncredited)