- Voice Actor (CV)
- Satoshi Tsuruoka
- Gender
- Male
- Role
- Supporting
- Identity
- A shadowy architect of international terror, who shaped protagonist Yuji Kazami's fate as both his adoptive father and former handler
Personality
Ruthlessly cold-blooded
Master manipulator
Elegantly unhinged
Deeply self-serving
Heath Oslo stands as the central antagonist of the series—a notorious figure operating at the heart of global terrorism. He took in Yuji Kazami after the boy lost his family, exploiting that vulnerability to forge him into a lethal instrument through brutal conditioning. Oslo harbors an obsessive, almost possessive fixation on Yuji, regarding him as the crowning achievement of his twisted legacy. Ultimately, he is the very man responsible for casting a long, dark shadow over Yuji's entire existence.