LetterheadsThe former Finch & Partners agent has joined the rival boutique agency. Gosling has taken clients Juliette Lewis and Carice van Houten (Black Book) with her. London-based Troika’s clients include Michael Fassbender, Little Britain comedy duo Matt Lucas and David Walliams, and new Doctor Who Matt Smith. Troika was established five years ago by former ICM agent Conor McCaughan; Michael Duff, formerly of Lou Coulson Associates; and Melanie Rockcliffe, ex-head of Talkback Management.