Fighting back against a slew of nasty allegations, Matthew Fox has filed a counter-suit against the Cleveland bus driver who claimed the actor had punched her back in August.

According to Heather Bormann, the "Lost" star hit her “with his fists, delivering sudden and severe blows to her right breast, groin, arms and legs, inflicting severe, disabling injury," after she blocked his attempt to get on the party bus of which she was driving without invitation.

He had a rough weekend in Cleveland, Ohio, and now Matthew Fox is facing assault charges for allegedly punching a party bus driver.

Heather Borman filed the paperwork yesterday against the “Lost” star, and told press that Fox was inebriated when he attempted to board her party bus.