There was a time when Mark auditioned for 800 roles without a single call-back. Yet the (lets just say it - smokin hot) 46-year-old actor has now done the impossible: conquered Hollywood while keeping his feet on the ground.
He's starred in blockbusters like Hulk and The Avengers, comedy with Keira Knightley and The Normal Heart about the HIV-AIDS crisis, plus still finds time to protest against fracking.