Jason Christopher Marsden (born January 3, 1975) is an American screen and voice actor who has done numerous voice roles in animated films, as well as various television series.
On Nickelodeon, he is best known as the voice of Chester McBadbat on The Fairly OddParents starting in the episode Abra-Catastrophe. He later voiced the recurring character Imaginary Gary, and in the episode "Fly Boy", voiced Danny Phantom character Dash Baxter, or at least a lookalike, in the film seen in the episode, titled I Was a Teenage Blowfly. He appeared in live-action in Channel Chasers as Clint, host of Clint's Hints.
He also voiced Torque Smakey on Invader Zim. On El Tigre: The Adventures of Manny Rivera, he voiced Camila Flores, whose super identity is Red Vaquero, Kali J.Wolf, known as La Gris Loba, and Carlos Suarez.
His first directing project was an episode of Nickelodeon's The Journey of Allen Strange.