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Richard Steven Horvitz is an American actor and voice actor who is best known for his voice roles as Alpha 5 in Mighty Morphin Power Rangers, Zeo, and Turbo; the titular character Zim in the Nickelodeon series Invader Zim; the titular character Billy and his father Harold in the Cartoon Network series The Grim Adventures of Billy & Mandy; Razputin Aquato in the video game Psychonauts; Bumble in the video game Kinectimals; Rodney J. Squirrel in Squirrel Boy; Grey Matter in the Ben 10 franchise; and Daggett in the Nickelodeon series The Angry Beavers. He is also well-known for voicing Kaos, the main antagonist of the Skylanders video game franchise, later reprising this role in the spin-off television series Skylanders Academy.

For Disney, he voiced Ned Frischman in Dave the Barbarian, Aviarius in Kim Possible, a ninja in Fish Hooks, Mouth in Kick Buttowski: Suburban Daredevil, Yucky in Billy Dilley's Super-Duper Subterranean Summer, Scooper in Ted Brooks' crazy dream in Snow Dogs (uncredited), and additional voices in both the 1998 animated film Mulan and Howl's Moving Castle. Additionally, he played Teddy in the That's So Raven episode "Adventures in Boss Sitting", and voiced Shiriki Utundu in the Tokyo DisneySea version of the Tower of Terror.

Disney Roles