Jason Anthony Griffith

Jason Anthony Griffith (born November 29, 1980) is an American actor and voice actor who has worked on several animated TV series, and was the voice of SEGA mascot Sonic the Hedgehog, as well as Shadow the Hedgehog and Jet the Hawk, in the Sonic the Hedgehog video game series, where he is credited as Jason Griffith and Adam Caroleson, before the role was passed to Roger Craig Smith. His role as Shadow was later passed to Kirk Thornton. He is currently playing the voice of Cilan, Ash's new traveling companion and first Gym Leader in ''Pokémon: Black & White. ''

He is confirmed to voice Kegler  in  Power Rangers LG: Galactic Underground.

Filmography
http://en.wikipedia.org/wiki/Jason_Anthony_Griffith#Filmography