Captain Keyes, Miranda Keyes, Serina (AI on the Spirit of Fire from Halo Wars), Captain Cutter (Spirit of Fire-Halo Wars), New Captain Lasky (SP), Halo 3 version of Sgt Johnson; the rest of Majestic (which we will get), Red Team (Spartans from Halo Wars), The Heretic, R'Tas Vadam, Thel (before Arbit...