Wikisimpsons - The Simpsons Wiki
| Alex Hirsch
| Guest Star Information
Alex Hirsch (born June 18, 1985) is an American voice actor, writer, storyboard artist, and producer. He is best known for being the creator of Gravity Falls. He will voice Bill Cipher in the upcoming season 33 episode "Bart's in Jail!".
Guest stars in season 33
|Kristen Bell • Sara Chase • Alan Cumming • Rachel Bloom • Brian Cox • Scott Hanson • Alex Hirsch • Cristin Milioti • Timothy Olyphant|