Kimmel's uncle, Frank Potenza ("Uncle Frank"), appeared on Jimmy Kimmel Live! as a regular from 2003 until his death in 2011. His cousin, Sal Iacono, performed Kimmel's former co-hosting duties during the last season of Win Ben Stein's Money and then became a writer and sketch performer on Jimmy Kimmel Live! His Aunt Chippy (Concetta Potenza) is also a featured part of the show. His brother, Jonathan, works on the show as a director. His sister, Jill, is a comedian. He has a son, Kevin, who works on the show as a production assistant. He has a daughter, Katie, who is a ceramics artist. He also has a daughter named Jane (born c. 2014) and a son named Billy (born 2017).