Home People Richard Steven Horvitz Richard Steven Horvitz shows Richard Steven Horvitz shows Richard Steven Horvitz TV Shows (28) El Tigre: The Adventures of Manny Rivera (2007) He was 40 years old Squirrel Boy (2006) He was 39 years old Ben 10 (2005) He was 39 years old Ben 10 (2005) As Grey Matter, He was 39 years old Dave the Barbarian (2004) He was 37 years old Zatch Bell! (2003) He was 36 years old That's So Raven (2003) He was 36 years old Codename: Kids Next Door (2002) He was 36 years old Grim & Evil (2001) He was 35 years old The Grim Adventures of Billy and Mandy (2001) As Billy (voice), He was 35 years old Invader ZIM (2001) He was 34 years old Invader ZIM (2001) As Zim, He was 34 years old Aqua Teen Hunger Force (2000) He was 34 years old As Told by Ginger (2000) As Mitchey Mekelburg (voice), He was 34 years old Static Shock (2000) He was 34 years old The Chimp Channel (1999) He was 32 years old Working (1997) He was 31 years old Cow and Chicken (1997) He was 31 years old Johnny Bravo (1997) He was 30 years old The Angry Beavers (1997) As Daggett Beaver (voice), He was 30 years old Sabrina, the Teenage Witch (1996) As Smaller Chair, He was 30 years old Sabrina, the Teenage Witch (1996) As Duck Head, He was 30 years old Babylon 5 (1994) As Mark, He was 27 years old Power Rangers (1993) As Alpha 7, He was 27 years old Power Rangers (1993) As Alpha 5 (voice), He was 27 years old The Legend of Prince Valiant (1991) He was 25 years old Seinfeld (1989) He was 22 years old The Munsters Today (1988) He was 22 years old
