Speaking of Zoom, I've read this speculation in other places, but especially after the last episode,. What do you think?I really started to think that he's more than likely is Barry Allen from Earth 2. He keeps saying that he's the 'fastest man alive' (Barry's favorite catch phrase from the intro of every episode)
Only thing about that is the actor they have playing him is buffed out, and they are using Tony Todd (Candyman) as the voice actor. Maybe the future version of Barry Allen that went back to save his mother from Reverse Flash. I heard one theory somewhere that it might be Barry's father. Reverse Flash killed Barry instead of his mother, and the father somehow gained the speed force.
Maybe they are going closer to the original comic Zoom, but since he and Jay Garrick had a thing going he could be The Rival and they are calling him Zoom. Anyways, some interesting candidates: Reverse Flashes.