David (Blood+)

David is the tetartagonist of the anime series Blood+. He is a member of the Red Shield, an organization dedicated to killing Diva and Chiropterans, who works as an agent assigned to direct collaboration with Saya Otonashi.

David was the sole survivor of a chiropteran attack on his special forces squad before joining the Red Shield. His father was also a member of Red Shield and was one of Saya's victims in the Vietnam incident. It is implied that he, along with Joe Goldschmidt IV, are the only members that are descended from a line of Red Shield operatives. David's red crystal item is a cross.

He is voiced by Jurouta Kosugi in the Japanese version and Christopher Nissley in the English version.

Personality
David tends to be straight-faced and serious, with a somewhat cold personality. However, he also assumes an unofficial guardianship of Kai and Riku, and would be instrumental in helping Kai come to terms with what Saya is and with Riku's conversion to a chevalier. He has a very pragmatic yet cynical view on life, believing that everyone must eventually go through hardship.

He seems to take a particular interest in helping Kai grow up to be a strong man who can support Saya and Riku as their brother, despite their unusual natures.