In 2006, McDowell portrayed radio mogul Jonas Slaughter on "". The following year, he portrayed the villainous Mr. Linderman on the first season of the NBC series "Heroes", a role he reprised in the third-season premiere. He starred in "Jerry Was a Man", which appeared as an episode of "Masters of Science Fiction" on Sky. He portrayed Terrence McQuewick on "Entourage", and he made a Special Guest Appearance as the icy fashion designer Julian Hodge in the "Monk" season 4 episode, "Mr. Monk Goes to a Fashion Show". "Never Apologize" is a 2007 documentary film of Malcolm McDowell's one-man show about his experiences working with film director Lindsay Anderson.