Michael Ausiello from TVline let out a big tease today for the upcoming second season of the Flash. During Cisco Ramon (Carlos Valdes) and Caitlin Snow's (Danielle Panabaker) first appearance on Arrow they referenced a former STAR Labs employee Arthur Light… or rather the villainous Doctor. Light. Ausiello says that The Flash will introduce Dr. Light this season… except it won't be the previously mentioned version but rather the Kimiyo Hoshi version that served as part of the Justice League International.
The part has yet to be cast.