They were voiced at different times by Dayton Allen (1946–66), Sid Raymond (1947), Roy Halee (1950–1955, 1959–1961), and Frank Welker (1979).

[6] The early cartoons paired the duo with the popular song of the time, "Listen to the Mocking Bird", as their theme.

In summer 1956, the premiere episode of the primetime CBS Cartoon Theater included the 1947 magpie short Flying South.

Heckle and Jeckle have been licensed for toys, T-shirts, puzzles, games, salt and pepper shakers, Halloween costumes, plush dolls, puppets, coloring books, cookie jars and other consumer products for decades, variously through Terrytoons, CBS Television and Viacom.

Selected cartoons from the original series of 52 theatrical titles were briefly made available on VHS home video in the 1990s, but a major DVD release has yet to materialize.