Damien Haas is a German-born American voice actor, actor, director, and content creator known for his extensive work in anime dubbing and video games. He was born on November 23, 1990, in Fulda, Hesse, Germany. His family relocated to Peachtree City, Georgia, in the United States when he was three years old. Haas began acting in third grade and later moved to Los Angeles after being accepted into the University of Southern California's theater program, which he left after one year to pursue acting full-time.

Before focusing on voice acting, Haas appeared in live-action television, including a role on the Disney Channel series So Random! alongside fellow actor Shayne Topp. He is also a well-known member of the Smosh comedy group, first appearing in Smosh content in 2017. He has since become a producer for Smosh Games and served as the Dungeon Master for the tabletop series Sword AF.

Haas has voiced a wide range of prominent anime characters in English dubs. He voices Kiyoka Kudo in My Happy Marriage, the head of the Kudo family and leader of the Special Anti-Grotesquerie Unit. He voices Laios Touden in Delicious in Dungeon, the leader of a party of adventurers on a quest to rescue his sister from a dragon. In the 2024 remake of Ranma ½, he voices Ryoga Hibiki, and in the 2025 film The Rose of Versailles, he provides the voice of King Louis XVI. He has been cast as Diego Brando in the English dub of JoJo's Bizarre Adventure: Steel Ball Run, a role he described as a dream come true. Additional anime roles include Ludger in Black Butler: Emerald Witch Arc, a German Grim Reaper voiced by an actor who is originally from Germany, and Shinya Momoiwa in Tougen Anki. He also voices Warden in Beyblade X.

Beyond anime, Haas has an extensive career in video game voice acting. His notable video game roles include the male protagonist Shez in Fire Emblem Warriors: Three Hopes, Van Arkride in The Legend of Heroes: Trails through Daybreak and its sequel, and Heller in Starfield.

In reflecting on his voice acting process, Haas has stated that he prioritizes acting over creating a unique voice, and he has improvised lines that made it into final projects, such as an unhinged delivery for a line in Delicious in Dungeon. He has cited Kiyoka Kudo as his most challenging role to date, noting that the character's vocal profile and emotional range required him to work in a different mode than usual. Haas has been a fan of JoJo's Bizarre Adventure for many years and was directed by Patrick Seitz, the voice of Dio Brando, for his role as Diego Brando. He has appeared as a guest at major conventions, including MCM Comic Con London and Anime Central.