Arrow, in contrast, has been relatively straightforward with its villains from Malcolm Merlyn to Slade Wilson to Ra’s Al Ghul. But this time, Prometheus has shown up as a “dark” version of Green Arrow, another archer, albeit enhanced with bonus swords and throwing stars. The identity of Prometheus has been a secret, echoing the sense of mystery and discovery The Flash has captured pretty well to date. I’m convinced at this point that Prometheus is Tommy Merlyn. It’s Tommy, that’s the only answer I see working.

Source: Forbes January 26, 2017 18:07 UTC