Nicholas Joseph Braun is an American actor. He is known for his role as Greg Hirsch in the HBO series Succession (2018–2023), for which he has received three nominations for the Primetime Emmy Award for Outstanding Supporting Actor in a Drama Series. He has also appeared in several films, including Sky High (2005), Princess Protection Program (2009), Red State (2011), Prom (2011), The Perks of Being a Wallflower (2012), The Watch (2012), Date and Switch (2014), How to Be Single (2016), and Zola (2021).