Actress Amber Tamblyn has signed on to play Charlie Sheen's lesbian daughter in the new season of hit Tv comedy Two And A Half Men.

The former House star will replace Angus T. Jones as a regular on the show.

Jon Cryer's Alan Harper will discover her character, Jenny, is his long-lost niece - the illegitimate daughter of his late brother, who moved to Los Angeles to become an actress.

Sources tell The Hollywood Reporter that Tamblyn's character will appear in at least five upcoming episodes of the Tv show, with an option to become an official series regular.