* TheDanza: Leonidas, played by Dimitri Leonidas.
* HeyItsThatGuy: Oh, look. [[Film/XMenFirstClass Magneto]] was a centurion in his former life, as was [[Series/TheWire Detective McNulty]], [[Series/DoctorWho Mickey Smith]], [[Series/TheWalkingDead The Governor]] and [[Series/GameOfThrones Ser Davos]]. [[Film/QuantumOfSolace Camille]] sure hates Those Crazy Romans.
* HistoryMarchesOn: 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.