- The Danza: Leonidas, played by Dimitri Leonidas.
- Hey, It's That Guy!: Oh, look. Magneto was a centurion in his former life, as was Detective McNulty, Mickey Smith, The Governor and Ser Davos. Camille sure hates Those Crazy Romans.
- History Marches On: It's a matter of some academic disagreement whether the Ninth Legion disappeared in Britannia. Neil Marshall was aware of the controversy but was more interested in telling the story of the legend than spot-on historical accuracy.