Guilherme Conradi is a Brazilian actor and voice actor based in São Paulo. He graduated in Performing Arts (Art Theater) from Universidade Estadual Paulista (Unesp) and has a diverse background in theater, film, and television, complementing his career in dubbing. His formation in performance began in theater with the Companhia Teatral Pirandello, where he was active from 1999 to 2008. He has also pursued further training in cinema through an MBA at the Los Angeles Film Institute and specific courses for interpretation for film and TV.

In the realm of anime dubbing, Conradi has built a substantial portfolio, lending his voice to a wide array of characters across popular series. He is frequently associated with the Dubrasil studio, where many of his notable roles have been recorded. His early work in the industry includes the role of Bardroy in the 2008 dubbing of Black Butler.

His career features a variety of prominent roles. He voices Cap in the surreal series Sonny Boy and took on the role of Henry VI in Requiem of the Rose King. In sports anime, he is the voice of Hajime Taki in Captain Tsubasa. He also contributes to major shonen franchises, playing Mezo Shoji in My Hero Academia and featuring in other popular titles such as SK8 the Infinity as Snake, The Slime Diaries as Kaval, The Case Study of Vanitas as Jean-Jacques Chastel, Higurashi: When They Cry as Kyosuke Irie, Log Horizon as Shiroe, and Combatants Will Be Dispatched! as Tiger Man.

Beyond anime, Conradi's voice work extends to audiobooks, where he has narrated works such as Só a Gente Sabe o Que Sente by Fred Elboni. He is also active as a live-action actor, with appearances in Brazilian television series like Reis and A Rainha da Pérsia, where his performance as the eunuch Carcas garnered significant audience attention. This blend of on-screen and voice acting, supported by formal theatrical training, defines his multifaceted career in the performing arts.