Garth Marenghi's Darkplace: Cast Rate: –☹️ Very Bad🙁 Bad😐 Average🙂 Good😃 Excellent🤩 Super! ★ Save Rating✔ Rating Saved! Notify me: –about new episodeabout new seasonabout end of season Subscribe✔ Subscription Saved! Garth Marenghi's Darkplace Science-Fiction, Comedy, Horror 1/29/04 – 3/4/04 United Kingdom http://www.channel4.com/programmes/garth-marenghis-darkplace GeneralEpisodesCastCharactersGallery Cast See full cast → Matthew Holness as Garth Marenghi / Dr. Rick Dagless, M.D. Matthew Holness as Garth Marenghi / Dr. Rick Dagless, M.D. Richard Ayoade as Dean Learner / Thornton Reed Richard Ayoade as Dean Learner / Thornton Reed Matt Berry as Todd Rivers / Dr. Lucien Sanchez Alice Lowe as Liz Asher