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