Eugene Levy is the latest star to join 'Only Murders in the Building' for season four. The Emmy-winning actor will have a recurring role in the show's upcoming season, marking his first regular television role since 'Schitt's Creek' ended. While details of Levy's 'Only Murders' character are being kept under wraps, it is known that he will become integral to the twists and turns of this season's investigation into — spoiler alert! — the death of Jane Lynch's character, Sazz Pataki.