Christopher Diaz is a Cuban American actor and voice actor known for his work in both live-action and animated productions. He was born in Miami, Florida. His on-screen acting credits include a lead role as Detective Vince Velazquez on the true-crime series ATL Homicide, as well as roles in the series Grown and Duels. In the voice acting field, he has worked for approximately ten years, providing English voices for various anime and animated series.

Diaz is recognized for his work on the long-running detective series Detective Conan, where he has voiced two significant characters. He provides the English voice for Kansuke Yamato, a police inspector from Nagano Prefecture known for the X-shaped scar where his left eye was lost and for using a forearm crutch due to a leg injury. Additionally, he voices Inspector Ninzaburo Shiratori of the Tokyo Metropolitan Police in the same franchise. Both of these roles were performed for the Macias Group English dubs of the series.

Beyond Detective Conan, Diaz has voiced the character Nizo Okada in the comedy anime series Gintama, specifically for the segment GINTAMA - Mr. Ginpachi's Zany Class. His other voice work includes roles in Captain Tsubasa, The Kings Avatar For The Glory, and the Spanish language version of Daniel Tigers Neighborhood.