Troy Evans (born February 16, 1948, in Missoula, Montana) is an American actor and Vietnam War veteran who served with the U.S. Army's 25th Infantry Division. He played Sergeant Bob Pepper on China Beach, desk clerk Frank Martin on ER and Detective Johnson, known as Barrel, on Bosch. His films include Teen Wolf, Near Dark, Kuffs, Under Siege, Demolition Man, Ace Ventura: Pet Detective, The Frighteners and Fear and Loathing in Las Vegas, and he voiced Thistle Jinn in Epic.