Walter Connolly as Nero Wolfe

Lionel Stander as Archie Goodwin

Eduardo Ciannelli as Paul Chapin

Irene Hervey as Evelyn Hibbard

Victor Kilian as Pitney Scott

Nana Bryant as Agnes Burton

Walter Kingsford as Ferdinand E. Bowen

Ian Wolfe as Nicholas Cabot

Leonard Mudie as Andrew Hibbard

Rafaela Ottiano as Dora Chapin

Joseph Allen as Mark Chapin

Jonathan Hale as Alexander Drummond

Edward McNamara as Insp. Cramer

Kenneth Hunter as Dr. Loring A. "Burt" Burton

Charles Irwin as Augustus Farrell

Jameson Thomas as Michael Ayers