To say that Isaacs brings some experience to the role is an understatement. He's known by many as Lucius Malfoy in the Harry Potter movies, but he has also had prominent characters in The Patriot, Fury and Netflix's The OA, among many other high-profile roles. That he'll play a major role in Discovery says a lot about the importance of the show to CBS -- it's the tentpole for All Access, the proof that a traditional broadcaster can offer an internet video service that's at least competitive with what 'upstarts' like Amazon, Hulu and Netflix can manage.