Randolph Severn "Trey" Parker III (born October 19, 1969) is an American animator, director, producer, screenwriter, actor, and composer. He is known for co-creating South Park (1997–) and co-developing the Tony Award-winning musical The Book of Mormon (2011) with his creative partner Matt Stone. Parker was interested in film and music as a child and at high school, and attended the University of Colorado, Boulder, where he met Stone. The two collaborated on various short films, and starred in the feature-length musical Cannibal! The Musical (1993).