レオナルド・ビスタリオ・ハーウェイ

One of the participants in the Holy Grail War. He is the heir to the Harway family, which is in control of 60% of the real world. He is very polite, and wants to secure the Holy Grail because he believes it to be dangerous.

He is Julius Harway's younger brother, and his servant is the non-plable Saber Gawain.

In Fate/Extra CCC, he leads the student council in escaping from the Far side of the moon.