Wally West a.k.a. The Flash is a character from Justice League Unlimited and is a minor character introduced in the first season of The Knights of the Multiverse. A member of the Justice League, he uses his speed to protect his Earth against super villains and alien threats.
Personality
Wally typically shows a carefree attitude and generally doesn't take many things seriously. That said, his heroism and bravery always shine through, and is willing to go to any lengths to aid his allies.
History
Pre-Series
Season 1
Season 2
Abilities
Superhuman Speed
Superhuman Endurance
Molecular Manipulation: Wally is able to vibrate himself to such a frequency that allows him to "pass through" walls and other solid objects.