Sean Pertwee will play Scotland Yard Inspector Lestrade in the upcoming season of Elementary.

Pertwee announced the casting on Twitter, saying, “About to shoot Elementary with my chums in London / NY playing Lestrade . Can I get a Whoop Whoop !” on July 3.  Lestrade is an inspector who is often Sherlock’s friend and the embodiment of incompetent law enforcement.

According to Huffington Post, in addition to the news that the Third Doctor will be playing Lestrade,  Rhys Ifans will play Mycroft Holmes, the older brother of Jonny Lee Miller’s Sherlock. All three actors have worked together before , starring in the 2000 British movie Love, Honor and Obey. The project also featured Jude Law, who plays Dr. John Watson in the current Sherlock Holmes movie franchise alongside Robert Downey Jr.

Elementary, a modern retelling of Sherlock Holmes, stars Johnny Lee Miller as Sherlock Holmes and Lucy Liu as Joan Watson. Entertainment Weekly reports that Sherlock will be called to London in the season 2 premiere.  His older brother, with whom Sherlock had a big falling out several years prior, allows them to stay with him in his home on 221B Baker St.

Both Pertwee and Ifans will make their debut in the Elementary Season 2 premiere on Thursday, September 26 at 10 p.m. ET on CBS.