Joshua Ilan "Josh" Gad (born February 23, 1981) is an American actor, comedian, and singer best known for voicing Olaf in Frozen, for originating the role of Elder Arnold Cunningham in the Broadway musical The Book of Mormon, and Ryan Church in the television series Back to You. He has also appeared in ER, The Daily Show, Modern Family, New Girl, Bored to Death, and Numb3rs, played Skip Gilchrist in the political sitcom 1600 Penn on NBC, and a fictionalized version of himself on FX's The Comedians, alongside Billy Crystal. His film roles include The Rocker, 21, Love & Other Drugs, Frozen, Jobs, and Pixels.