Zoom is the main antagonist of the second season of CW's "The Flash". A demonic speedster from Earth 2, Zoom intends to steal Barry's speed and prove himself to be the "fastest man alive". Midway through the season, he is revealed to be Jay Garrick, who is actually Hunter Zolomon impersonating the real Jay Garrick, and is responsible for Henry Allen's death.
The K Team Storyline
Zoom will be one the main villains in the Book Three.