Sonic is from the series known as Sonic the Hedgehog. He was a main character in all 3 SSB movies & Gaming All Stars. He alongside Mario, revived the SSB3 cast after the fight with Giygas & G-Man. He alongside Mario & Crash sacrificed himself to save the world against Andross. He was also a main character in GamingAllStarsGmod's other series called Mario Vs. Sonic.