Jeremy Merton Sisto (born October 6, 1974) is an American actor. Sisto has had recurring roles as Billy Chenowith on the HBO series Six Feet Under and Detective Cyrus Lupo on Law & Order on television and also starred in the films Jesus, Clueless and Thirteen.
Sisto was born in Grass Valley, California, the son of Reedy Gibbs, an actress and farmer, and Richard Sisto, a farmer, jazz musician and educator. His parents divorced in 1980. His elder sister, Meadow Sisto, an American actress, known for playing Caroline in the 1992 comedy film Captain Ron, got him involved in acting. He was raised in Chicago and attended the Francis W. Parker School. Jeremy Sisto appeared in the film Grand Canyon while attending high school. After studying at UCLA he began acting full-time.
At a young age, he appeared in the Twisted Sister video "We're Not Gonna Take It". He experimented in the various sectors of entertainment, but became locally known for his "aquatic" magic act. The show traveled throughout the Los Angeles area, mainly outside strip-malls in Chino and Compton. After making friends with several closeted magic fans, he was finally given his big break.