Sonic X  

Sonic, Sonikas X, X סוניק, Соник X, ソニック X

On Sonic's home planet, Eggman has gathered all seven of the Chaos Emeralds and is on the verge of acquiring absolute power when Sonic intervenes, resulting in an explosion that transports everyone to Earth. To stop Eggman and save their world, Sonic teams up with 12-year-old Christopher Thorndyke and together they collect all the Chaos Emeralds and defeat the evil doctor.

Note: The series was broadcasted for 52 episodes on TV Tokyo from April 6, 2003 until March 28, 2004. However, the episodes 53-78 were broadcasted together with the rest outside of Japan in the US and France but a decision to broadcast them in Japan was never made, although there exists a Japanese language version for those episodes.(Source: AniDB)