Mycroft Holmes is Sherlock Holmes' older brother, and M.Holmes 'older son. He works as a restauranteur and an operative in MI6. He has been estranged from Sherlock for years, due to Sherlock's affair with Mycroft's fiancé. Mycroft suffered from Leukemia, and now he's looking to improve his relationship with Sherlock. Mycroft also cares deeply about Joan.

He is the current resident of 221B Baker Street London.[1]


Season two appearances
Step Nine Solve for X We Are Everyone Poison Pen
Ancient History An Unnatural Arrangement The Marchioness Blood Is Thicker
On the Line Tremors Internal Audit The Diabolical Kind
All in the Family Dead Clade Walking Corpse de Ballet The One Percent Solution
Ears to You The Hound Of Cancer Cells The Many Mouths of Aaron Colville No Lack of Void
The Man With the Twisted Lip Paint It Black Art in the Blood The Grand Experiment


  • He owns a Michelin-star restaurant where he invited Joan Watson for dinner in order to understand how to "be Sherlock's friend" in 'Step Nine'
  • He opened a new restaurant in New York named Diogenes, named after the Club Mycroft in Conan's fictions frequented in London.


Every photo of Mycroft Holmes on this wiki can be seen here.

Family treeEdit

May Holmes
Morland Holmes
Mycroft Holmes

Sherlock Holmes

c. 1976


  1. Tierney Bricker (June 26, 2013). "Elementary Season 2 Scoop: Rhys Ifans Cast as Sherlock Holmes' Brother". E! Online. Retrieved June 27, 2013.