In the English dubbed version it's Jason Anthony Griffith, as for the Japanese it's Masami Kikuchi.
In the Latest Games,and TV Series,both Sonic and Shadow are Voiced by Jason Griffith.
His accent is Japanese in Sonic X and American in sonic games
Yes 3 of them thier's Sonic Amy and Shadow
Ever since the original series from Adventures of Sonic the hedgehog, to Saturday Morning Sonic, to Sonic underground, to Sonic X, to current video games, there are many hedgehogs. The main hedgehogs are: Sonic, Manic, Sonia, Shadow, Silver, and Amy. there are others but carry a minor part in the Sonic series.
For the video games, Ryan Drummond did his voice from 1998-2004 and for 2005-the present, Sonic is voiced by Jason Anthony Griffith. For the cartoons AoStH, SatAM, and Sonic Underground he's voiced by Jaleel White (Steve Urkel). For the anime OVA he is voiced by Martin Burke and for Sonic X, he is voiced by Jason Anthony Griffith.
In Sonic X , Danny is voiced by Frank Frankson .
Amy Palant does the voice of Tails in the newer Sonic games and in the 4kids version of Sonic X.
Dan Green
Lisa ortiz
Jennifer douillard
Sonic X is translated by 4Kids, so the original cast will not be voicing Sonic X.
In the Sonic X dub and post-Shadow the Hedgehoggames, Cream is voiced by Rebecca Honig.In Japan, Cream's voice is done by Sayaka Aoki.In Sonic Heroes, Sonic Battle and Sonic Advance 3, Cream was voiced by Sarah Wulfeck.