The Marchioness

Summary

Sherlock’s brother, Mycroft, arrives in New York and enlists Holmes and Watson to help solve a case involving his former fiancée. Meanwhile, Sherlock has a difficult time accepting Mycroft and Joan’s relationship.

Guest stars

• Rhys Ifans as Mycroft Holmes
• Olivia D'Abo as Nigella Mason
• Phyllis Somerville as Miriam Berg
• Andrew Samonsky as El Mecanico
• Joe Forbrich as Brad Scheff
• Jane Pfitsch as Lisanne
• Orlagh Cassidy as Maris
• Christopher Tocco as Will
• Ken Marks as Chairman
• Lucas Salvagno as Addict