Achille is a male Breton and a member of The Blades. He serves as a background character. He is never on patrol, unlike most Blades. He just sits and reads in the East Wing of the temple. Pester him, and he will ask you to refer to other members of The Blades instead. Although he does have unique dialogue, he plays no part in any quests and offers no services.
 Unique Dialogue
"I haven't time to talk right now, I'm afraid. But I'm sure one of the other Blades can help. Try speaking with Belisarius or Caroline."
"Sorry, but I'm too busy to talk right now. Try one of the other Blades. Perhaps Roiland or Cyrus?"