A stage-trained British actor who rose to prominence playing incarcerated American Muslim leader Kareem Said on the gritty HBO drama series "Oz" (1997- ). While studying social work, Walker tried out for the Explosive Dance Theatre Company, beginning his career in show business. This led to stage work, including a 1983 turn as a punk in the musical "Labelled With Love", a working class London-set production based on the seminal Squeeze album "East Side Story". TV work followed for the actor, who took a regular role on the BBC sitcom "In Sickness and in Health" from 1985-1987. From 1988-1989,
