Gianni Matragrano is a voice actor known for his work in English dubs of anime series and video games. Born on April 14, 1993, he is based in Ottawa, Ontario, Canada, and is represented by The Meus Talent Agency. He began his voice-over career around 2011 and has since provided voices for hundreds of projects, working with clients such as Funimation, Rooster Teeth, and Anime Midstream. In addition to his work in professional dubs, Matragrano has gained a following for his online content, including voice-over videos and streaming on platforms like YouTube and Twitch.

Matragrano's anime voice acting credits encompass a range of supporting and secondary characters. In the romantic comedy A Couple of Cuckoos, he voices Yōhei Umino. He played the role of Minotaur in the fantasy comedy Sleepy Princess in the Demon Castle, which was dubbed by Sound Cadence Studios for Funimation in 2021. His work in 2022 included the role of Ceionius in the Netflix series Thermae Romae Novae and the character Hyakutaro Senju in the action series Tribe Nine. Earlier credits from 2020 include the character Leo in the historical drama Arte. In the mecha genre, he voiced Gregory Cartland in AMAIM Warrior at the Borderline, a 2021 series for which an English dub was produced by NYAV Post in 2022. His film work includes a role in the 2022 animated film Mobile Suit Gundam: Cucuruz Doan's Island.

Across these projects, Matragrano has frequently collaborated with several Dallas-Fort Worth area voice actors and studios, including Sound Cadence Studios, which produced the English dubs for Tribe Nine and Sleepy Princess in the Demon Castle. He has also worked with FUNimation Entertainment on various dubs. Beyond anime, his voice can be heard in video games, such as the character Gabriel in the 2020 game Ultrakill, and in the animated series Death Battle.