- The Danza: Leonidas, played by Dimitri Leonidas.
- Dated History: 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.
- Dueling Movies: With The Eagle, which is based on the same legend about the Ninth Legion, though it's adapted from a novel and this isn't.
- 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.