Z. Gillispie
From Homestar Runner Wiki
Z. Gillispie is a friend of The Brothers Chaps who plays the King of Peasantry in Peasant's Quest Movie Trailer, as the brothers mention in the DVD commentary. He is a member of Dad's Garage, an Atlanta-based improv comedy troupe.
He also co-starred in the world premiere of the stage play "O Happy Day," written by Graham Chapman and Barry Cryer, playing the role of "Marjory Simpson" (in drag).