It appears as if Spartacus actor Liam McIntyre has joined the cast of The Flash. We met Clyde Mardon in the pilot, so McIntyre is presumably playing his brother Mark. It's strange that we've heard nothing about this casting, but PUNKD Images are reliable, so the actor has more than likely been cast as Weather Wizard if they're saying he was spotted on set in this villainous role. Hopefully this means we'll get official confirmation soon regardless. What do you guys think?