
Having spent decades eclipsed by his famed brother, consulting detective Sigerson Holmes (Wilder) finally receives a chance to prove himself when a vital case draws him into a farcical chase. Along the way he confronts a maze of false identities, pilfered documents, secret codes and even a few embarrassing exposed backsides, all in pursuit of the truth.
Does The Adventure of Sherlock Holmes’ Smarter Brother have end credit scenes?
No!
The Adventure of Sherlock Holmes’ Smarter Brother does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of The Adventure of Sherlock Holmes’ Smarter Brother, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Mel Brooks
Lion victim (voice)

Leo McKern
Moriarty

Roy Kinnear
Moriarty's Assistant

Dom DeLuise
Eduardo Gambetti

Douglas Wilmer
Sherlock Holmes

Albert Finney
Man in Audience at Opera

Gene Wilder
Sigerson Holmes

Madeline Kahn
Jenny Hill

Marty Feldman
Sgt. Orville Stanley Sacker

Aubrey Morris
Coach Driver

John Le Mesurier
Lord Redcliff

Wolfe Morris
Frenchman

Thorley Walters
Dr. Watson

John Hollis
Moriarty's Gunman

Michael Crane
Renato

Tony Sympson
Opera Conductor

Susan Field
Queen Victoria

Julian Orchard
Man in Tails

Tommy Godfrey
Fred

Kenneth Benda
Butler

George Silver
Bruner

Joseph Behrmannis
Russian
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Challenge your knowledge of The Adventure of Sherlock Holmes’ Smarter Brother with this fun and interactive movie quiz. Test yourself on key plot points, iconic characters, hidden details, and memorable moments to see how well you really know the film.
Who directed and starred as the lead character in this 1975 comedy?
Mel Brooks
Peter Sellers
Gene Wilder
John Cleese
Show hint
Read the complete plot summary of The Adventure of Sherlock Holmes’ Smarter Brother, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.
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