Richard Steven Horvitz

Nicktoons

Daggett Doofus Beaver (voice)

Invader ZIM: Enter the Florpus

Zim (voice)

Meeting MacGuffin

Gormal MacGuffin (voice)

Saving Santa

Orange Haired Elf

Ben 10 Destroy All Aliens

Grey Matter

The Informant!

Bob Zaiderman

Underfist: Halloween Bash

Billy / Harold / Pumpkin / Trick-or-Treater Eater

Billy and Mandy's Big Boogey Adventure

Billy / Billybot / Harold / Pale Ghoulish Juror / Chippy the Squirrel (voice) (as Richard Horvitz)

The Grim Adventures of the Kids Next Door

Billy/Harold

Billy & Mandy: Wrath of the Spider Queen

Billy / Billy's Dad

Ben 10

Grey Matter

Cartoon Network Christmas: Yuletide Follies

Billy (Voice)

The Grim Adventures of Billy and Mandy

Billy (voice)

Invader Zim

Zim

As Told by Ginger

Mitchey Mekelburg (voice)

Jingle Bells

Cheddar (voice)

The Angry Beavers

Daggett Beaver (voice)

Sabrina, the Teenage Witch

Duck Head

Sabrina, the Teenage Witch

Smaller Chair

Sherman's Way: A Kid's Guide to Coping with Change

Corny

Babylon 5

Mark

Mighty Morphin Power Rangers: Alpha's Magical Christmas

Alpha 5

Power Rangers

Alpha 5 (voice)

Power Rangers

Alpha 7

How I Got Into College

Young Energizer

Summer School

Alan Eakian

Shrek

ADR & Dubbing