Cassidy reprised the role of Lurch in later appearances. In the "Batman" episode "The Penguin's Nest" (1966), he appears during the heroes' familiar climb scene up the side of a building, as a tenant who is playing the "Addams Family" theme on harpsichord prior to sticking his head out of the window and speaking to Batman and Robin. He voiced Lurch in an episode of "The New Scooby-Doo Movies" (1972), and in the 1973 animated series adaptation of "The Addams Family".