Waver Velvet (Japanese: ウェイバー・ベルベット, Hepburn: Weibā Berubetto) is a fictional character who first introduced in Type Moon's light novel prequel to Fate/stay night, Fate/Zero by Gen Urobuchi. Waver is depicted as a nineteen-year-old student studying at the Clock Tower. He then joins the Fourth Holy Grail War in Fuyuki, Japan and becomes the Master of Rider, after stealing his teacher's artifact in hopes of forcing the Mages' Association to recognize his genius by winning the War. Upon returning, he later becomes a professor and the Dean of Norwich, the Modern Magecraft Theory Department of the Clock Tower. As the main protagonist in the spin-off light novel The Case Files of Lord El-Melloi II by Makoto Sanda, Waver is formally given the title of Lord El-Melloi II (ロード・エルメロイII世, Rōdo Erumeroi Nisei), after being adopted into the El-Melloi family. He returns in the sequel The Adventures of Lord El-Melloi II.Waver is voiced by Daisuke Namikawa in all of his appearances in Japanese, with multiple actors reprising the role in English appearances. His design was created by Takashi Takeuchi as a young bishonen. The character was created by Urobuchi in an attempt to balance the cast of Fate/Zero with Waver displaying more weak traits as young man who would develop into a fine adult through the events of the narrative. His El-Melloi persona was written by Makoto Sanda as a grown man sharing detective dynamics with his assistant Gray inspired by Sherlock Holmes. Urobuchi expressed mixed feelings when Sanda handled his character but still felt it was well developed.
