Black Noir from the Boys comic books is a highly dangerous and volatile character, with a ruthless and psychotic nature. As an ISG member, his insane and schizophrenic tendencies are amplified, and he is known for his dark humor, which can often lead to him coming across as both disturbing and absurd and borderline heavily comedic, as he sees joy and grief in the pain and tragedies, chaos and destruction. Despite his unstable state, Black Noir is extremely loyal to the ISG Groups and fights against non-human threats, displaying a rare sense of commitment and loyalty to the group. Due to his alien intelligence, he can also speak several languages (English, Portuguese, etc.) and is often distinguished by his all-black attire.