Jamison Boaz is an American voice actor, musician, and sound engineer known for his work in anime and video game localization, particularly for providing the death metal singing voice for the character Retsuko in the series Aggretsuko. His career is notably rooted in his background as a heavy metal musician, which has directly shaped his most prominent roles and contributions to the industry.

Boaz's entry into voice acting was a transition from his extensive music career. He has been involved in several musical projects, including the heavy metal band Modern Weapons and the multi-genre project Epsilon Zero, for which he provides vocals, guitars, and synthesizers. This musical expertise led to his most iconic role. Beginning in 2018, he was cast as the voice of Death Metal Retsuko in the Netflix original anime Aggretsuko. While Erica Mendez provides the speaking voice for the character Retsuko, Boaz performs the character's cathartic and powerful death metal vocals, a task that appears in the main series, its specials, and the OTM Girls musical releases associated with the show.

Beyond Aggretsuko, Boaz has built a career as a voice actor in numerous video game localizations, often credited in additional voices capacities or for specific character roles. His video game credits are extensive and include prominent titles. He is credited for additional voices in Fire Emblem: Three Houses and has voiced specific characters such as Astram and Pent in Fire Emblem Heroes, and Griss in Fire Emblem Engage. In Unicorn Overlord, he voices the character Bruno. He also contributed to Devil May Cry 5, providing the voice for the character Cavaliere Angelo and serving as the Style Announcer.

In addition to his on-screen roles, Boaz frequently works behind the scenes in audio production. His technical credits include serving as the Lead ADR Sound Engineer for Devil May Cry 5, as an Audio Editor for BlazBlue: Chronophantasma Extend, and contributing to post-production for Guilty Gear -Strive-. His musical talents also extend to songwriting, as he provided theme song lyrics for the fighting game Phantom Breaker: Omnia. His anime voice acting credits also include minor roles in the Berserk: The Golden Age Arc films and Mobile Suit Gundam Thunderbolt: December Sky.