 He went on to guest star on "ER" as Dr. Nick Cooper in 2003.He had small roles in the films "Must Love Dogs" (2005), "Serenity" (2005), "Two Weeks" (2006), and "The Strangers" (2008).He also appeared as a nurse in "Crank" (2006), and reprised the role in its 2009 sequel, "".