Jack Riley (December 30, 1935 - August 19, 2016) was an American actor. He is best known for the roles of Elliot Carlin from The Bob Newhart Show and Stu Pickles from Rugrats and All Grown Up!, as well as Wally Frick from Occasional Wife, Gomez Adams from The Addams Family Fun House, The Werewolf from The Halloween That Almost Wasn't, Alex from Romance Theatre, Leon Buchanan from Roxie, and Chappy from Son of the Beach.
He also made appearances in television shows such as Gomer Pyle: U.S.M.C., Rowan and Martin's Laugh-In, Hogan's Heroes, The Red Skelton Show, The Mary Tyler Moore Show, Harry O, Keep on Truckin, Barney Miller, One Day at a Time, Diff'rent Strokes, Body Language, Throb, Night Court, and The Tonight Show with Jay Leno.
He notably appeared in Mel Brooks films, namely Silent Movie, High Anxiety, History of the World: Part I, To Be or Not to Be, and Spaceballs. His other movie credentials include Catch-22, McCabe & Mrs. Miller, The Long Goodbye, Attack of the Killer Tomatoes!, Boogie Nights, Recess: School's Out, and Room 6.
He was one of the many performers on the 1973 comedy album "The Watergate Comedy Hour" (along with Frank Welker).