From Bulbapedia, the community-driven Pokémon encyclopedia.
Jason Griffith (born 26 November, 1980) is a voice actor for the English-language dub of the Pokémon anime. He is credited under J. Griff, Jason Anthony Griffith and Adam Caroleson.
Jason Griffith joined the anime during the sixth season. He voiced characters for the series up until Pokémon USA took control of the dubbing and distribution of the series. He returned to the series in Cream of the Croagunk Crop!. In the Best Wishes series, Griffith picked up his most important role yet; providing the voice of Cilan. He also portrays some supporting Pokémon roles in the Best Wishes series; portraying Trip's Servine and Ash's Scraggy.
Other non-Pokémon roles
Griffith was best known for voicing Sonic the Hedgehog in Sonic X and every Sonic game from Shadow the Hedgehog to Sonic & The Black Knight, replacing Ryan Drummond, Sonic's previous voice actor, and being replaced by Roger Craig Smith. He also did the voice of two of Sonic's rivals: Shadow and Jet, both of which have cameos in Super Smash Bros. Brawl.
- Griffith has voiced two Gym Leaders who happen to share their Gym Leader status with their siblings: Cilan and Tate. Cilan and Tate are also both the result of a multiple birth, with Cilan being a triplet with Chili and Cress and Tate being the twin brother of Liza.