Reginaldo Primo is a Brazilian voice actor born in Rio de Janeiro on February 27, 1977. He began his career in dubbing in 1995 at the renowned Herbert Richers studio, having been introduced to the field by Teresa Anquetim and trained by Newton da Matta. Throughout his extensive career, he has worked at most of the major dubbing studios in Rio de Janeiro, including Delart, Som de Vera Cruz, MG Estudios, Beck Studios, Cinevideo, Wan Macher, Doublesound, Gigavoxx, and Alcateia. In addition to voice acting, he has also taken on directing roles for dubbing at Wan Märc.

Primo's voice is well-known across a wide spectrum of animated series and films. In anime, he has voiced several prominent characters, including Kai Rhodan in Back Arrow, Dylan G. Oldin in Appare-Ranman!, and Chrome in Suppose a Kid From the Last Dungeon Boonies Moved to a Starter Town. He also voiced the character Rapid Run in the Transformers: Robots in Disguise series. Beyond anime, his voice acting portfolio is extensive and includes Shadow the Hedgehog in Sonic X and Sonic Boom, Jazz in the Transformers film, and roles in major video games such as Jackie Welles in Cyberpunk 2077 and Hanzo Shimada in Overwatch.

His work also encompasses a significant number of live-action series and films. Primo is the Portuguese voice for actors and characters like Dean Winchester in Supernatural, Wade Wilson in Deadpool, Superman in Superman Returns, Frank Castle in The Punisher, and Jerry Russo in Wizards of Waverly Place. He has also provided the voice for characters in the Marvel Cinematic Universe, including Loki.

In 2021, Primo was diagnosed with Generalized Anxiety Disorder, which led him to step back from more intensive dubbing work for a period to focus on his health. Despite this, his body of work remains a testament to his significant and versatile contribution to Brazilian dubbing. The specific roles of Thorkell in Vinland Saga, Alexandrov Grigorovich in Plunderer, Ryan Goldsmith in Tiger & Bunny 2, Wald Richter in Attack on Titan: Lost Girls, and Enzo in Bayonetta: Bloody Fate, which were mentioned in the query, could not be confirmed as part of his portfolio through the available search results.