Santino Fontana (born March 21, 1982) is an American actor and singer, widely known for playing Greg on the television show Crazy Ex-Girlfriend, and for voicing Prince Hans, the primary antagonist of the 2013 Disney animated film Frozen. 　　In 2005, as a member of the Essentials, Fontana co-wrote the musical comedy Perfect Harmony,and originated the role of Philip Fellowes V. In 2006, he starred as Matt in the Off-Broadway revival of The Fantasticks.His Broadway debut was Sunday in the Park with George in 2007. Fontana originated the role of Tony in the Broadway production of Billy Elliot from October 1, 2008 to July 4, 2009. He was awarded the 2010 Drama Desk Award for Best Featured Actor in a Play for his work in Brighton Beach Memoirs. He starred as Prince Topher in Rodgers & Hammerstein's Cinderella on Broadway, for which he was nominated for a Tony Award for Best Leading Actor in a Musical. 　　In 2013, he provided the voice of Prince Hans in the Walt Disney Animation Studios film Frozen. 　　In 2015, Fontana became the first guest artist to perform three times in the space of one year with the Mormon Tabernacle Choir.Fontana also joined the cast of the CW romantic musical comedy-drama Crazy Ex-Girlfriend that same year. On November 11th, 2016, it was announced that Fontana was leaving the TV series after his one-year contract with the CW.