Peter "Finn" Wittrock, Jr. (born October 28, 1984) is an American actor and screenwriter. He began his career in guest roles on several television shows, before making his feature film debut in Twelve (2010). After studying theater at The Juilliard School, he was a regular in the soap opera All My Children from 2009 to 2011, while performing in several theatrical productions. In 2011, he performed in playwright Tony Kushner's Off-Broadway play The Illusion and made his Broadway debut in 2012 as Happy Loman in the revival of Arthur Miller's play Death of a Salesman, directed by Mike Nichols.
In 2014, he gained recognition for his roles in the films The Normal Heart, Noah, and Unbroken, and garnered a Primetime Emmy Award nomination for his role as Dandy Mott in the FX series American Horror Story: Freak Show. In 2015, he portrayed model Tristan Duffy and actor Rudolph Valentino in American Horror Story: Hotel, and starred in the ensemble cast of the dramedy film The Big Short.