Adebisi is Nigerian - specifically Yoruba - and speaks with a strong accent, but had lived in America for about 15 years prior to his incarceration. Little else is known of his life before Oz; it is implied on more than one occasion that he was married, though, his wife is never shown on screen or mentioned in any great detail. Adebisi is shown to be short-tempered, hedonistic, sociopathic and occasionally psychotic, though, he is also shown to be capable of engineering and executing long-term plans through intellect and manipulation.