The Flash
I'm practically starting a campaign to have Luke Mitchell as the Flash. I put great importance on the actor resembling the character and Mitchell is the spitting image of Barry Allen.
http://images.wikia.com/marvel_dc/images/e/ec/Barry_Allen_002.jpg
FYI, for those who don't or haven't read comic books:
http://en.wikipedia.org/wiki/Flash_(comics)
Stupid P'takh!