Geoffrey Lazer Ramsey (born Geoffrey Fink; June 19, 1975), is an American voice actor for Rooster Teeth, a production company he co-founded in 2003, best known for being the voice of Dexter Grif in the web series Red vs. Blue. He also co-founded Achievement Hunter, a video gaming division of Rooster Teeth which he manages. Additionally, he co-starred in the first season of animated web series X-Ray and Vav and currently co-stars in the bi-weekly series Happy Hour alongside his wife Griffon Ramsey, and friend Gavin Free.