Alex Rossa

Alex Rossa is a military Colonel who plans on aiding the war effort to fight the were-wolves. His the son of a hunter. He is depicted as rational and resourceful, able to create a make-shift time-bomb powerful enough to blow up a cabin. He also cares for Testa Lielbelle and is shown protecting and fighting for him. He wishes to bring a quick end to the war, presumably to minimize casualties on either side.

(Spoilers from this point on)

In the fight with Lance Corporal Blake, he tries to buy Testa Lielbelle and Yonaga time to escape, nearly dying in the process. Fortunately, he is saved by Testa in wolf-form. After the fight, he gives his hat to Testa, telling him to cover his ears, presumably for his own safety. It's believed that later he is found by other military officials and receives medical treatment.

In the ONA he is voiced by Takuya Eguchi.