Michael Craig Judge is an American animator, film director, writer and voice actor, best known as the creator and star of the popular animated television series Beavis and Butt-head (1993–1997, 2011–), King of the Hill (1997–2009), and The Goode Family (2009). He also wrote, directed and occasionally produced the films Beavis and Butt-head Do America (1996), Office Space (1999), Idiocracy (2006) and Extract (2009). Judge is also known for his role in the Spy Kids movie franchise. He had been working on a new show, The Goode Family, on ABC, which ran from May 27, 2009–August 7, 2009. The show also had a short four-week run on Comedy Central in 2010.

Mike Judge plays as Beavis, Butt-Head (voice) in Beavis and Butt-Head.
Mike Judge is the top #1 member of the cast and appears in 47 episodes.

Tracy Grandstaff plays as Daria Morgendorffer in Beavis and Butt-Head.
Tracy Grandstaff is the top #2 member of the cast and appears in 40 episodes.

Adam Welsh plays as Stewart Stevenson in Beavis and Butt-Head.
Adam Welsh is the top #3 member of the cast and appears in 40 episodes.

David Wayne Spade (born July 22, 1964) is an American actor, comedian and television personality who first became famous in the 1990s as a cast member on Saturday Night Live, and from 1997 until 2003 starred as Dennis Finch on Just Shoot Me!. He also starred as C.J. Barnes, along with Katey Sagal, James Garner and Kaley Cuoco on 8 Simple Rules.He currently stars as Russell Dunbar on the CBS sitcom Rules of Engagement. He is also working with TBS on an animated series based on his film Joe Dirt. Description above from the Wikipedia article David Spade, licensed under CC-BY-SA, full list of contributors on Wikipedia.

David Spade plays as Mr. Manners in Beavis and Butt-Head.
David Spade is the top #4 member of the cast and appears in 40 episodes.

Dean Julian plays as Earl in Beavis and Butt-Head.
Dean Julian is the top #5 member of the cast and appears in 40 episodes.