Dennis Lee Hopper (born May 17, 1936) is an Academy Award-nominated American actor and film-maker. He is known primarily for playing nervy, slightly-unhinged characters, and is best known for his roles in the films Blue Velvet, Hoosiers, Speed, Apocalypse Now and Easy Rider, the villain Victor Drazen in the first season of the show 24, and as the voice of Steve Scott in the video game Grand Theft Auto: Vice City..