Oz

Lee Tergesen portrayed Tobias Beecher, an educated lawyer who is sentenced to prison after being convicted of driving under the influence of alcohol. Beecher's experiences in prison critically reshape his outlook on life and his relationship with other inmates.

Harold Perrineau portrayed Augustus Hill, a wheelchair-bound inmate who serves as the show's narrator. Hill becomes a confidant for many of the inmates and shares his perspective on life in prison through his voiceover narrations.

Dean Winters portrayed Ryan O'Reily, an intelligent and manipulative Irish-American inmate. O'Reily is known for his cunning nature and ability to manipulate people and situations to his advantage.

Eamonn Walker portrayed Kareem Saïd, a former Black Panther turned Muslim inmate. Saïd is depicted as a charismatic and influential figure within the prison, challenging the power dynamics and advocating for justice.

Ernie Hudson portrayed Leo Glynn, the warden of Oswald State Correctional Facility. Glynn struggles to maintain order within the prison walls and navigate the complex relationships between the inmates and the staff.

Terry Kinney portrayed Tim McManus, the unit manager of Em City, the experimental unit within the prison. McManus seeks to rehabilitate the inmates and provide them with opportunities for personal growth and improvement.

Rita Moreno portrayed Sister Peter Marie Reimondo, a compassionate nun and counselor at Oswald State Correctional Facility. Sister Peter Marie provides guidance and support to both the inmates and the staff, often serving as a moral compass.

J.K. Simmons portrayed Vernon Schillinger, a white supremacist and leader of the Aryan Brotherhood within the prison. Schillinger is a menacing presence who uses his power and influence to maintain control and inflict harm on others.