What The Cast Of Pump Up The Volume Is Doing Today
David Wilson
Updated on March 06, 2026
With the voice and mannerisms of a young Jack Nicholson, Christian Slater plays Mark Hunter, aka Hard Harry. While Mark is achingly quiet and socially inept in school, he is someone else entirely with a microphone in his hand.
In the early '90s, Slater was one of the most sought-after actors in Hollywood. He starred as gunslinger Arkansas Dave in 1990's "Young Guns II," joined Kevin Costner, Alan Rickman, and Morgan Freeman in "Robin Hood: Prince of Thieves" the following year as Will Scarlet, and quickly followed that up by playing Lucky Luciano in the crime drama "Mobsters." In 1993, Slater had the distinction of acting alongside Patricia Arquette in one of the first films written (though not directed) by Quentin Tarantino, "True Romance." This film features a stunning ensemble of actors including Val Kilmer, Dennis Hopper, Christopher Walken, Brad Pitt, Gary Oldman, and — still relatively unknown at the time — Samuel L. Jackson. 1994 saw him replace the late River Phoenix — a friend of Slater's — in "Interview with the Vampire."
In more recent years, Slater has become well-known for his television roles. Notably, he's the titular anarchist of USA's "Mr. Robot." He also starred on the short-lived NBC series "My Own Worst Enemy," and recently appeared in the 2021 Peacock original miniseries "Dr. Death."