Dan Levy has joined the cast of Netflix hit Sex Education as filming for series four of the show begins in Wales.The Canadian actor, 39, is best known for playing David Rose in Schitt’s Creek, a show he co-created with his father Eugene Levy. Dan is set to play Thomas Molloy in the comedy, a famous author who acts as Maeve Wiley’s course tutor as she heads to study at a prestigious university in the US. Confirming the news, Netflix shared a photo of Dan in his role and wrote: “Sex Education Season 4 is now in production — and Dan Levy has joined the cast as Mr.