Comedian and author will play the detective's brother in sequel

Stephen Fry has announced he will play Sherlock Holmes‘ brother in a sequel to 2009’s Guy Ritchie-directed film.

The actor and comedian revealed to Danny Baker on BBC 5Live that he will play Mycroft Holmes in the follow-up to the first film, which starred Robert Downey Jr as Holmes, with Jude Law playing Dr Watson.

Sir Arthur Conan Doyle‘s books portray Mycroft as more intelligent than his detective brother, with a shady role in the British government.

The Girl With The Dragon Tattoo‘s Noomi Rapace will play the female lead – with the casting of Holmes‘ nemesis Professor Moriarty yet to be announced.

Names rumoured for that role include Russell Crowe, Brad Pitt and Daniel Day Lewis.

The sequel is expected in December 2011.