Nero Wolfe
Archie Goodwin
Mazie Gray
Claude Roberts
Sarah Barstow
Ellen Barstow
Manuel Kimball
Emanuel Jeremiah (E.J.) Kimball
Prof. Edgar Barstow
Olaf
Det. Lt. O'Grady
Marie Maringola
Dr. Nathaniel Bradford
Carlo Maringola
The Apartment House Maid
Minor Role (uncredited)
Golf Starter (uncredited)