Kal Penn is a man on the move. The actor who played Kumar in the 2004 stoner comedy “Harold & Kumar Go to White Castle” went on to play Dr. Lawrence Kutner on the Fox television series “House.” In a surprise plot twist on last night’s episode of “House,” Dr. Kutner committed suicide. The actor has made his exit from the popular series to take a supporting role in the Barack Obama Administration. His new job is associate director in the White House Office of Public Liaison. Mr. Penn, who will be 32 later this month, is of East Indian descent. He will be a liason to the Asian-American and Pacific Islander communities.