The ace card of the Hellsing Organization.
Ookami's personality seems to have many layers, sometimes being quite comical, joking around politely. While at other times very serious, and often sadistic while in combat, using attacks that cause unnecessary amounts of pain and disabling his enemies.
Ookami's equipment consists only of his weapons, being a set of high-velocity microfilament wires which cut through most substances with much ease. They are stored within the rings on his gloves, and can be pulled out by touching the rings together. The wires are so thin that most people and even supernatural beings cannot see them.
The Hellsing Organization's experimentation led to the birth of Ookami Zetsumei, designed to be Hellsing's new Angel of Death. Born from genetic combination and cloning techniques, Ookami was born utilizing the DNA of both Alucard, and Walter C. Dornez. Trained from the age of 3 to use Walters special wires, he grew up with the massive power of Alucard, and skills and weapons of Walter. He now acts as Hellsings new secret weapon.