| Lived in Bermuda until she was 5, when her family moved back to England. |
| Made her big-screen debut opposite Jeremy Irons in the 1992 drama Waterland. |
| Took a year off from acting after a difficult experience filming Terry Gilliam's 2005 fantasy The Brothers Grimm, for which Headey was reportedly not the director's first choice |
| While a student at Shelley High, was spotted by a casting agent who saw her in a publicity photo for a school production at the Royal National Theatre. |
| Experienced a career rival in 2007, appearing in surprise box-office smash 300 and starring in Fox's Terminator TV series The Sarah Connor Chronicles. |