Frederick Christopher Klein (born March 14, 1979) is an American actor. He made his on-screen debut with a supporting role in the dark comedy film Election (1999) before his breakout starring role as Chris "Oz" Ostreicher in the teen sex comedy film American Pie (1999). He reprised his role in two sequels: American Pie 2 (2001) and American Reunion (2012). Following American Pie, Klein starred in the comedy films Say It Isn't So (2001), Just Friends (2005), and American Dreamz (2006), and had lead roles in the drama film Here on Earth (2000) and the science fiction sports film Rollerball (2002). He also starred in the war film We Were Soldiers (2002), the drama film The United States of Leland (2003), and the martial arts action film Street Fighter: The Legend of Chun-Li (2009). After a starring role in the film Authors Anonymous (2014) and a recurring role as Drew on the FX sitcom Wilfred (2011–2014), Klein experienced a career resurgence in the late 2010s with his main role as Orlin Dwyer / Cicada on season 5 of the CW superhero television series The Flash (2018–2019). Following The Flash, he had a main role as Bill Townsend on the first three seasons of the Netflix drama series Sweet Magnolias (2020–2023) and starred in the slasher film Fear Street: Prom Queen (2025). (Via Wikipedia)