Michael Rosenbaum and Justice League

I don't get how I could have watched 4 whole seasons of the Justice League cartoons and am only now figuring out that Michael Rosenbaum plays the Flash!!!! I only found out because my brother pointed out that Nathan Fillian was going to be in the new Justice League: Doom movie so I decided to go see if they have the same actors for Batman and Superman and saw Michael Rosenbaum name!!!

Apparently he was doing the voice acting around the same time they were filming Smallville. I loved Rosenbaum as Lex but I LOVE his take on the Flash.