Matt Lang is the younger of the Lang brothers. He went to UMich with the other members of Team StarKid and has directed and written all of the productions so far. He hasn't done much acting in many of the shows except a short cameo in Little White Lie. He also sang the original recording of the song "Liam's Got a Phone Call."
All of the StarKid fandom loves and appreciates Matt Lang. And ofcourse, Matt Lang is a real man.