Eagled-eyed sci-fi fans will recognize Byrne as one of Senator Amidala's aides in Star Wars: Episode II: Attack of the Clones (2002). But Byrne appeared more prominently in the 2004 historical epic Troy alongside Brad Pitt and fellow Aussie Eric Bana. Two years later, she played a confidant to the youthful French queen in director Sofia Coppola's biopic Marie Antoinette.
On television, Byrne is best known for her Golden Globe- and Emmy-nominated supporting work on the breakout cable hit "Damages," in which she plays a young attorney who's learning the ropes from her ruthless boss (Glenn Close).