Alexander Harper "Xander" Berkeley is an American character actor and voice actor. He got his first acting role with Mommie Dearest and since then has made numerous appearances, such as Terminator 2: Judgment Day, Candyman, A Few Good Men, Apollo 13, Leaving Las Vegas, Heat, Barb Wire, Gattaca, Kick-Ass, Aaahh!!! Real Monsters, Life with Louie, Johnny Bravo, Extreme Ghostbusters, The Wild Thornberries, Salem, and The Walking Dead.
He is mostly known for supplying voice work and occasional live-action performances to a variety of DC Comics related projects consisting of Superman: The Animated Series, Batman Beyond, Justice League, Teen Titans, Batman: The Brave and the Bold, Beware the Batman, Supergirl, Superman/Batman: Public Enemies, and Son of Batman.
He has also done some Marvel Comics related work, such as a 1982 episode The Incredible Hulk and voice work in Spider-Man: The New Animated Series and The Spectacular Spider-Man.
For Disney, he played Phineas P. Viper in Mighty Ducks, Coldsteel in Gargoyles, Mr. Alchemy in Teamo Supremo, and Captain Gilad Pellaeon in The Mandalorian and Star Wars: Tales. For Touchstone Pictures, he played Harvey Preston in Billy Bathgate, Marchat in The Gun in Betty Lou's Handbag, Nathan Van Cleef in Shanghai Noon. For Hollywood Pictures, he played Dr. Lonner in The Rock.