Before and after Batman, Alan Napier was a distinguished character actor in films and television. One of his earliest TV appearances in the US came in this 1953 episode of Four Star Playhouse, in which he appears opposite fellow Brit David Niven in "The Man on The Train":
One of Napier's post-Batman guest gigs was on Ironside. Hoping to find that one someday. No rating. Just a public service.