Bismarck Waldstein

Bismarck Waldstein (ビスマルク・ヴァルトシュタイン, Bisumaruku Varutoshutain) is a man who bears the title of the Knight of One under Charles, the strongest amongst the Knights of the Round. He pilots the Knightmare Frame Galahad, and keeps his left eye sewn shut. Despite his status and combat abilities, he believes that war should be used as a last resort, and also sees strength without restraint as needless violence. He was previously the Knight of Five.

During the second battle of Tokyo, Bismarck leads the Britannian forces guarding the shore against Li Xingke's invasion force. Li and Bismarck battle, with Li unable to defeat him. Bismarck compliments Li's skill when he purposefully takes a hit to move into position to rescue the Chinese command vessel. During Schneizel's attempted coup d'état of Emperor Charles, he intervenes to stop Suzaku's assassination attempt on the Emperor. Suzaku's "live" command urges him to flee before they even begin fighting, indicating that Waldstein is extremely dangerous.