Michael James McDonald (born December 31st, 1964) is an American actor, writer, comedian, and director, best known for starring in the sketch comedy show MADtv. McDonald joined the show during the fourth season (1998) and remained in the cast until the end of the thirteenth and penultimate season, having become the longest-tenured cast member. While on the show, he developed many memorable characters. He was a contributing writer and director on MADtv. McDonald has also directed several episodes of the NBC, now ABC, comedy-drama series Scrubs, on which he has guest-starred 6 times.