The 30+ Greatest Immortal Anime Characters

We've all got to go sometime, but that isn't necessarily true for these immortal anime characters. Who is the greatest immortal anime character of all time? Popular anime characters that can't die include Alucard from Hellsing, C.C. from Code Geass, and a ton of characters from the Fate/stay series. Who is the best immortal anime character? Vote up your favorites on this poll, and feel free to add more characters if they're not already here.