Vegas Lancaster is an improv artist, comedian and ensemble voice actor on Have Spellbook - Will Travel.
His roles include many of the villains in the series. He is featured in Behind the Scenes episode 4.
A member of Improve group The N Crowd, Vegas regularly performs in Philadelphia. His website is http://www.vegaslancaster.com/
Vegas Lancaster is, of course, his stage name. His birth name is Des Moines Lancaster, which is a family name, has father also having the last name Lancaster.