He also appeared in commercials, most notably as the delivery man in a Diet Coke commercial. He has appeared in the films "Soapdish", "John Q" and "Alpha Dog", and had a small uncredited role in "The Notebook". He portrayed the role of Dan Scott in One Tree Hill beginning in 2003 until the show's end in 2012. He subsequently featured in Takashi Miike's 2003 film Gozu, appearing as a man with a cow's head. In 2003 Johansson wrote and directed the film "The Incredible Mrs. Ritchie". He has also directed several episodes of "One Tree Hill". In 2006 he starred in Emily Skopov's "Novel Romance", alongside Traci Lords and Sherilyn Fenn. He appeared in the 7th season of "The Drew Carey Show", playing a sportscaster.