
Highest rated as cast or director
Invader ZIM
2001 · 2 Seasons
Helluva Boss
Since 2020 · 3 Seasons
The Grim Adventures of Billy and Mandy
2001 · 7 Seasons
The Angry Beavers
1997 · 4 Seasons
Bunnicula
2016 · 3 Seasons
Biography
Richard Steven Horvitz (born July 29, 1966) is an American actor and comedian, best known for his voice work in animation and video games. His voice credits include the original Alpha 5 on Mighty Morphin Power Rangers, Power Rangers Zeo and Power Rangers Turbo, Razputin in Psychonauts, Kaos in Skylanders, Billy and his father Harold in Grim & Evil and The Grim Adventures of Billy & Mandy, Grey Matter in Ben 10, Rodney in Squirrel Boy, Daggett in The Angry Beavers, Zim in Invader Zim, Orthopox in Destroy All Humans!, the Zoni in Ratchet & Clank, Bumble in Kinectimals, the Space Weaver in Broken Age, Kanchomé in Zatch Bell!, and Moxxie in Helluva Boss.
Acted in 91
2020s
- 2023
- 2022
Sketchy Queens
Various Characters · 1 episode
- 2021
- 2020
Green Seas
Writer
2010s
- 2019
- 2018
- 2017
Meeting MacGuffin
Gormal MacGuffin (voice)
- 2016
The Comeback Kids
Richie · 1 episode
- 2015
- 2014
Mighty Morphin Power Rangers: Green With Evil
Alpha 5 (voice)
- 2013
- 2012
The Bite-Sized Adventures of Sam Sandwich
Fryborg / Big Cheese / Salty Pup (voice) · 10 episodes
- 2011
Fred & Vinnie
Book Store Autoraph Hound
- 2010
2000s
- 2009
- 2008
Snack Break
Grey Matter
Betsy's Kindergarten Adventures
Scott / Newton / Dad (voice) · 26 episodes
- 2007
The Grim Adventures of the Kids Next Door
Billy / Harold (voice)
Hard Four
Sheldon Goldstein
Billy & Mandy: Wrath of the Spider Queen
Billy / Billy's Dad (voice)
CN Invaded Part 5: Billy & Mandy Moon the Moon
Billy / Billy's Dad (voice)
- 2006
Ben 10 Merry Christmas
Grey Matter
Shorty McShorts' Shorts
Dudley / Guard (voice) · 1 episode
Big Babies
Waaa Baby
- 2005
- 2004
Cartoon Network Christmas: Yuletide Follies
Billy (Voice)
Power Rangers Dino Thunder: Legacy of Power
Alpha 5 (voice) (uncredited)
- 2003
Billy & Mandy's Jacked-Up Halloween
Billy/Guy (voice)
- 2002
Maktar
Richard Horowitz · 1 episode
- 2001
- 2000
The Grim Adventures of Billy & Mandy: Meet the Reaper
Billy (voice)
1990s
- 1999
Storm
Danny
The Chimp Channel
TV
Jingle Bells
Cheddar (voice)
- 1998
Sabrina Goes to Rome
Stonehenge (voice)
- 1997
Galgameth
Kinch
- 1996
Power Rangers Zeo: Zeo Quest
Alpha 5 (voice)
Mighty Morphin Power Rangers Live: The World Tour Live-on-Stage
Alpha 5 (voice)
- 1995
Get Street Smart: A Kid's Guide to Stranger Dangers
Capricorn (as Richard Stults)
- 1994
Mighty Morphin Power Rangers: Alpha's Magical Christmas
Alpha 5 (voice)
Angry Beavers in: "Snowbound"
Daggett Beaver
- 1993
- 1991
1980s
- 1989
How I Got Into College
Young Energizer
- 1988
The Munsters Today
Howie Buchanan · 2 episodes
- 1987
Produced 1
2000s
- 2004
Sound 1
2000s
- 2001
Wrote 1
2000s
- 2001
Appearances2
2020s
- 2025
Hazbin Hotel: Live on Broadway
Self
2010s
- 2014





