Trent Haaga is a "horror junkie" in the film industry, working as an actor, screenwriter, director, producer, and assistant director. His career focuses on independent cult films, and maintains close collaboration with Troma Entertainment, founded by Lloyd Kaufman, with his works often falling within genres such as horror, science fiction, and dark comedy.

Haaga entered the industry in the 1990s as an actor, appearing in Troma cult film Terror Firmer as the lead, gradually moving into assistant directing roles. In the 2000s, he appears in films such as Living and Dead, Deadgirl, Starry Eyes, and the Killjoy series. He also directed movies such as Chop and 68 Kills.