Jonathan David Bennett (born June 10, 1981) is an American actor and television host. He is known for his roles as Aaron Samuels in the comedy film Mean Girls (2004), Bud McNulty in Cheaper by the Dozen 2 (2005), the title character in the comedy Van Wilder: Freshman Year (2009), and his recurring role as Casey Gant in the mystery drama series Veronica Mars. He was the host of Food Network's series Halloween Wars, and he also hosted Cake Wars as well as Christmas Cookie Challenge. He also stars and co-stars in numerous Hallmark and TV movies.