Mark TymchyshynMark Tymchyshyn is an American actor perhaps best known for his role in George Lopez as Mel Powers, a factory owner. Tymchyshyn is a graduate of Wayne State University.CareerHe directed A Lie of the Mind with playwright Sam Shepard. He also has cameo roles in shows such as ER, Diagnosis: Murder, Monk, Seinfeld,'' The Drew Carey Show, and Boston Legal. From 1990 to 1992, he played Gavin Kruger in the daytime drama As the World Turns and also appeared in an episode of Malcolm in the Middle'' in 2000. He originally intended to become a teacher, but is now both an actor and professor.