Richard Steven Horvitz's movies and tv series

Mighty Morphin Power Rangers: Once & Always (2023)
Invader ZIM: Enter the Florpus (2019)
Helluva Boss (2019 - )
Ben 10 (2005 - 2008)
Brandy & Mr. Whiskers (2004 - 2006)
The Grim Adventures of Billy & Mandy (2003 - 2007)
Invader ZIM (2001 - 2006)
The Angry Beavers (1997 - 2001)
Galgameth (The Legend of Galgameth) (1996)
Mighty Morphin Power Rangers (1993 - 1996)