90

Rita Moreno

as Sister Peter Marie Reimondo

67

J.K. Simmons

as Vern Schillinger

61

Christopher Meloni

as Chris Keller

76

Ernie Hudson

as Warden Leo Glynn

54

Adewale Akinnuoye-Agbaje

as Simon Adebisi

59

Eamonn Walker

as Kareem Said

57

Dean Winters

as Ryan O'Reily

58

Harold Perrineau

as Augustus Hill

50

Kirk Acevedo

as Miguel Alvarez

68

Terry Kinney

as Tim McManus

56

Lee Tergesen

as Tobias Beecher

74

Tom Mardirosian

as Agamemnon Busmalis

About Oz

About

Oz, short for Oswald State Correctional Facility, captures life in a four-story, maximum security prison. Ernie Hudson played the Warden. 

Trivia

Creator Tom Fontana at least co-wrote all 56 episodes. This was HBO's first hour long drama.