Self (archive footage)
Victor Herbert
Mr. Borden
Dr. MacAuley
Tobias Bliss
Olaf Brand
Dr. Theodore Grauer
The 'King'
Mr. Brown
Gabby MacArthur
John P. Dillingwell
Sam Lewis
Carter Hibbard (archive footage) (uncredited)
Dist. Atty. Thomas Mathews
Carter Hibbard
Oliver Stone
Uncle
Nero Wolfe
Joe Quinn
Michael Steele
James B. Allenbury
Maximilian, Duke of Bavaria
Humphrey Craig
John Mitchell
Malcolm Bedford
Captain Bourne
Daniel Van Dyke
Father Brown
J.L. Higgins
Captain Helquist
Judge Daly
Viktor Nilsson
John Forrester aka Eric Jann aka Peter Korotoff
Oliver Webb
Dr. Walter Selby
Alexander Andrews
John Lawton
Sam Parker
Count Romero
Major Adair
Bill Holt
Mossie Ennis
Senator Wylie
