After spending decades living in the shadow of his more famous and successful sibling, Consulting Detective Sigerson Holmes (Wilder) is called upon to help solve a crucial case that leads him on a hilarious trail of false identities, stolen documents, secret codes... and exposed backsides.
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
