The Adventure of Sherlock Holmes' Smarter Brother

Gene Wilder

Sigerson Holmes

Madeline Kahn

Jenny Hill

Marty Feldman

Sgt. Orville Stanley Sacker

Dom DeLuise

Eduardo Gambetti

Leo McKern

Moriarty

Roy Kinnear

Moriarty's Assistant

John Le Mesurier

Lord Redcliff

Douglas Wilmer

Sherlock Holmes

Michael Crane

Renato

Albert Finney

Man in Audience at Opera

Thorley Walters

Dr. Watson

George Silver

Bruner