Wally West

Wally West is a superhero known as The Flash. He seems to be a good friend of profiler Hunter Zolomon.

History
At some point, Wally West gained super speed at a younger age and eventually became the Flash, meeting Hunter Zolomon later on.

Trivia

 * Although not named at all in the Zeroverse, Alex Guy has confirmed that the speedster mentioned by Hunter is indeed Wally West.