Want: Sakura Matou, Kiritsugu Emiya, Irisviel, Manaka, Waver, Bazett, Karen, Avenger, Kirei Kotomine, Lancelot, Gawain, Merlin, Mordred, Miyu, Kuro, every Lancer, Berserker, Archer, Ruler, Rider, Caster, Saber, Assassin, etc. I would personally like anyone from Fate/Prototype Fragments because of the potential confusion that could cause.
Have: Archer (FSN), Saber (Zero&FSN), Emiya Shirou, Rin Tohsaka, Illya (Prisma).