Brian Tochi (b. 1963) is an actor who supplied the voice of Leonardo in Teenage Mutant Ninja Turtles, Teenage Mutant Ninja Turtles II: The Secret of the Ooze, and the non-Henson Teenage Mutant Ninja Turtles III. Tochi's other voice roles include parts on such series as The Amazing Chan and the Chan Clan, Batman Beyond, Captain Planet and the Planeteers, Kim Possible, and The Grim Adventures of Billy & Mandy.
On camera film roles include Takashi in the Revenge of the Nerds movies and Cadet Nagata in two Police Academy entries. Tochi's television work includes parts on both the original Star Trek (as a child actor in "And a Child Shall Lead Them") and Star Trek: The Next Generation (as Ensign Lin in "Night Terrors"). He also appeared on the soap opera Santa Barbera as Kai from 1988 to 1990, and guest starred on such series as The Partridge Family, The Brady Bunch, Diagnosis Murder, and Wonder Woman.