The Marchioness


Episode Info

Sherlock's brother, Mycroft, arrives in New York and asks Holmes and Watson to help him solve a case involving his former fiancée. Sherlock agrees to help but finds it difficult to accept Mycroft's close relationship with Joan.


Jonny Lee Miller
as Sherlock Holmes
Lucy Liu
as Joan Watson
Aidan Quinn
as Tommy Gregson
Jon Michael Hill
as Det. Marcus Bell
Rhys Ifans
as Mycroft Holmes
Olivia d'Abo
as Nigella Mason
Andrew Samonsky
as El Mecanico
Joe Forbrich
as Brad Scheff
Ken Marks
as Chairman
Jane Pfitsch
as Lisanne
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The Marchioness Photos