Marcus Griffin is an English-language voice actor known for work in anime and animated productions. One of his most prominent roles is providing the voice of Pyunma, also known as Cyborg 008, in the English dub of the 2012 Japanese anime science fiction film 009 Re:Cyborg. This film, directed by Kenji Kamiyama and produced by Production I.G., featured an English dub produced by N.Y.A.V. Post and directed by Michael Sinterniklaas and Anthony Tortorici. In some sources, Griffin is listed under a pseudonym for this role, with Ogie Banks also credited as the English voice of the same character.

Beyond his work in anime, Griffin has voiced characters in several animated films within the Monster High franchise. He portrayed the character Clawd Wolf in multiple direct-to-video releases, including Monster High: 13 Wishes in 2013, Monster High: Frights, Camera, Action! in 2014, Monster High: Haunted in 2015, and Monster High: Great Scarrier Reef in 2016. His other voice credit includes the role of Whitey in the 2022 animated family adventure film Chickenhare and the Hamster of Darkness. In addition to acting, Griffin has also been credited with work in sound department roles for select productions.