Sean Carl Roland Pertwee is an English actor, narrator and producer with an extensive career since the 1980s in television and cinema productions. He is known for the role of Sgt. Wells in the film Dog Soldiers, W.F. "Smitty" Smith in Event Horizon, Inspector Lestrade in CBS's Elementary and Alfred Pennyworth in Fox's Gotham. He is also the narrator of MasterChef: The Professionals and Zero Hour.