Terrorizer is an American grindcore band from Los Angeles, California. It was originally formed in 1985 as Unknown Death by vocalist Oscar Garcia and guitarist Jesse Pintado. They would rename themselves Terrorizer after recruiting drummer Pete Sandoval, who remains the band's sole constant member throughout their discography, in 1986. The band's current lineup consists of Sandoval, bassist David Vincent, vocalist Brian Werner and guitarist Richie Brown. They are currently signed to Earache Records.
Terrorizer struggled to find success during their initial existence, and would disband in 1988 after Sandoval left to join Morbid Angel. They were briefly regrouped by David Vincent to record their highly influential debut album World Downfall, before they split up again later that year when Pintado left to join Napalm Death. In 2005, Pintado and Sandoval reformed Terrorizer without Garcia, recording and released their second album Darker Days Ahead in 2006. Terrorizer became inactive once again due to Pintado's death only five days after the album's release on August 27, 2006.