Ted Cassidy played the deep-voiced butler Lurch. He also played Thing, the Addams’ pet hand. (Or at least his hand played Thing.)
Lurch wasn’t supposed to talk. But while filming the first episode, Cassidy improvised the line, “You rang?” with his incredibly deep voice. Producers liked the line, and the voice, and so Lurch got lines. (And a catchphrase.)
Cassidy had a minor hit in 1965 with “The Lurch.” A dance called “The Lurch” was also briefly popular.