Thompson's Fox News prank caught the attention of "The Howard Stern Show", and the impression—dubbed "Fake Arnold" by the show's producers—soon became a mainstay on the program. At around the same time, Thompson also made a number of appearances on the "Conway and Steckler" and "Conway and Whitman" radio shows in Los Angeles (KLSX), and 96fm's "Breakfast" show in Perth, Western Australia, where he voiced a number of characters, including Fake Arnold, Robert De Niro, Sylvester Stallone, Michael Jackson, and Bill Cosby.