Liam James McIntyre (born 8 February 1982) is an Australian actor, best known for playing the lead role on the Starz television series Spartacus: Vengeance and War of the Damned and as Mark Mardon / Weather Wizard on The Flash. He has also voiced JD Fenix in the Gears of War series, Captain Boomerang in the DC Animated Movie Universe, Commander...