Sonic The Hedgehog

Sonic The Hedgehog is the most major character in the SFM series.

Biography
Sonic The Hedgehog (less known as Maurice Hedgehog, his real name in the series) is the fastest hedgehog in the universe, able to break the sound barrier within seconds. He is a brash and cocky hedgehog with blue fur and a peach, round belly. He appears in 1991, but was born in 1986. Because that he is a Mobian, he ages every 25 years.

Sonic is also titled as "Hero of Mobius", defending his world from the wrath of Dr. Robotnik, an evil overweight scientist with an IQ of over 300.