Rhys Ifans has been cast as Sherlock Holmes’ older brother Mycroft in the second season of Elementary.

In the episode, Sherlock (Jonny Lee Miller) is called to London to revisit an old case, where he is forced to face his older brother, Mycroft. Although the siblings suffered a drastic falling-out a few years earlier, Mycroft allows Sherlock and Joan (Lucy Liu) to stay in his new home, 221B Baker Street. With Joan in the middle, the brothers are forced to confront their very complicated history.

“I could not be more excited to have Rhys coming aboard,” said Executive Producer and Creator Robert Doherty. “I’ve always been a tremendous fan and feel very honored to have him in the fold. Equally excited are Jonny and Lucy, both of whom have worked with Rhys in feature films. I think this is going to be a lot of fun for all of us.”