Jordan Masterson is an American actor. He played Zeb, a five-year-old boy, in Danielle Steel's 1993 TV adaptation Star. He is perhaps best known for his role as Mark in the 2005 film The 40-Year-Old Virgin and his recurring role as Dumptruck in ABC Family comedy-drama series Greek. He co-starred as Ryan Vogelson on the sitcom Last Man Standing.on ABC (2012-2017) and FOX (2018-).