Character Enid Wikipedia: Enid (link not verified) 1978 ▷ Played by Helena McCarthy once on Film in 'The Hound of the Baskervilles'. Oct 1978:'The Hound of the Baskervilles' 2007 ▷ Played by Colleen Flynn once on Television in 'House MD'. 15 May 2007:'The Jerk'