| 2024 |
Crisis on Infinite Mirths |
Billy |
| 2023 |
Mighty Morphin Power Rangers: Ayer, hoy y siempre |
Alpha (voice) |
| 2020 |
Green Seas |
Writer |
| 2019 |
El invasor Zim y el portal mágico |
Zim (voice) |
| 2017 |
Meeting MacGuffin |
Gormal MacGuffin (voice) |
| 2016 |
The Comeback Kids |
Richie |
| 2016 |
Skylanders Academy |
Kaos (voice) |
| 2016 |
Bunnicula |
Lugosi (voice) |
| 2012 |
The Bite-Sized Adventures of Sam Sandwich |
Fryborg / Big Cheese / Salty Pup (voice) |
| 2012 |
Ben 10: La destrucción de los aliens |
Grey Matter |
| 2011 |
Fred & Vinnie |
Book Store Autoraph Hound |
| 2008 |
Super-Puño |
Billy / Harold / Pumpkin / Trick-or-Treater Eater (voice) |
| 2008 |
Snack Break |
Grey Matter |
| 2007 |
The Grim Adventures of the Kids Next Door |
Billy / Harold (voice) |
| 2007 |
Ben 10: El secreto del Omnitrix |
Grey Matter / Stinkfly Prisoner |
| 2007 |
Billy & Mandy: La Ira de la Reina Araña |
Billy / Billy's Dad (voice) |
| 2007 |
CN Invaded Part 5: Billy & Mandy Moon the Moon |
Billy / Billy's Dad (voice) |
| 2007 |
La gran aventura de Billy & Mandy con el Coco |
Billy / Billybot / Harold / Pale Ghoulish Juror / Chippy the Squirrel (voice) (as Richard Horvitz) |
| 2006 |
Squirrel Boy |
N/A |
| 2005 |
Ben 10 |
Grey Matter (voice) |
| 2005 |
Billy and Mandy Save Christmas |
Billy (voice) (as Richard Horvitz) |
| 2004 |
Cartoon Network Christmas: Yuletide Follies |
Billy (Voice) |
| 2003 |
Billy & Mandy's Jacked-Up Halloween |
Billy/Guy (voice) |
| 2001 |
Las macabras aventuras de Billy y Mandy |
Billy (voice) |
| 2001 |
Grim & Evil |
N/A |
| 2001 |
Invasor Zim |
Zim (voice) |
| 2000 |
The Grim Adventures of Billy & Mandy: Meet the Reaper |
Billy (voice) |
| 1999 |
The Chimp Channel |
N/A |
| 1999 |
Jingle Bells |
Cheddar (voice) |
| 1998 |
Sabrina en Roma |
Stonehenge (voice) |
| 1997 |
Los castores cascarrabias |
Daggett (voice) |
| 1997 |
Turbo Power Rangers |
Alpha 5 (voice) |
| 1996 |
Power Rangers Zeo: Zeo Quest |
Alpha 5 (voice) |
| 1996 |
Mighty Morphin Power Rangers Live: The World Tour Live-on-Stage |
Alpha 5 (voice) |
| 1996 |
Sherman's Way: A Kid's Guide to Coping with Change |
Corny |
| 1995 |
Power Rangers: La Película |
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) |
| 1994 |
Angry Beavers in: "Snowbound" |
Daggett Beaver |
| 1987 |
Juerga Tropical |
Alan Eakian |
