Johnny Test is an animated television series created by Joe Tetreau produced by Warner Bros. Animation and Coliseum Entertainment, for the first and second seasons, and Cookie Jar, for the remainder of the series. It premiered on Kids' WB, on September 17, 2005, which continued to air the series through its second and third seasons. The rest of the series aired on Cartoon Network, from its debut on January 7, 2008 in the United States and internationally. In Canada, the series aired on Teletoon, premiering September 8, 2006.
- James Arnold Taylor as Johnny Test / Hank Anchorman
- Trevor Devall as Dukey
- Maryke Hendrikse as Susan Test
- Ashleigh Ball as Mary Test
- Ian James Corlett as Hubert "Hugh" Test
- Kathleen Barr as Lila Test / Janet Nelson Jr.
- Andrew Francis as Gil Next Door
- Bill Mondy as Mr. Black
- Scott McNeil as Mr. White
- Lwe Tockar as General