The official site for Code Geass: Akito the Exiled got updated with some new character profiles:
"The leader of a particular group that opposes the Mafia. He's plotting an attack on the E.U. general, Sumairasu." [We left the name rawly transliterated for the moment.]
"A boy who belongs to Ryou's group. He excels at collecting data and handling explosives."
"A girl who is also in Ryou's group. She's constantly practicing katana."