Emmy-award winning actor Jack Klugman passed away today at 90 years old. The actor is best known for his role as Oscar on the television series The Odd Couple that aired from 1970-1975.

He later went on and starred in Quincy, M.E. that was broadcasted from 1976 to 1983. Quincy was considered ahead of its time and paved its way for many of the medical dramas that aired later.

Klugman went on and guest starred in roles on hit television shows Diagnosis Murder, Crossing Jordan, and Third Watch throughout the 1990s and early 2000s. The former two series followed a somewhat similar premises of Quincy.