Jack was the son of a poor Russian-Jewish immigrants.
Jack won a TONY award in 1960 for Best Supporting Actor (Musical) for his role in Gypsy.
From September to October 2003 he performed his one-man show An Evening with Jack Klugman at the Falcon Theatre in Burbank.
His most recent stage credit was playing in The Value of Names in New Brunswick, NJ in November 2006.
Jack was always a fan of horse racing and actually was part owner of a racing steed named Jaklin Klugman.
Jack was sued by former girlfriend Barbara Neugass in December 1999. A jury rejected her 881,000 palimony claim.
Jack is still involved in the New York theatre scene as he serves on the board of directors for the New York National Actors Theatre.
Jack published Tony And Me: A Story of Friendship in 2005. The book is a memoir about his long friendship with the now-deceased Tony Randall.
Klugman and Tony Randall appeared together on Broadway in Neil Simon's The Sunshine Boys in 1998.
Jack shares an honor with Burgess Meredith as being the only actors to be featured in "leading roles" in four episodes of the original Twilight Zone.
Mr. Klugman is the last survivor of the cast of the original film version of Twelve Angry Men after the death of Jack Warden in 2006.
Jack attended Carnegie Mellon University in Pittsburgh.
Jack won two Emmys for his role as Oscar Madison on The Odd Couple.
Jack: Poverty can teach lessons that privilege cannot.
Jack: There are so many stories about injustices that I would like to do, especially about the harmfulness of smoking tobacco.
Jack: (on doing The Odd Couple on television versus Broadway) I was reluctant to take the TV role, ... How does a TV series follow a classic Broadway comedy?
Jack: I was at the pinnacle of my career one day and the next day I was put out to pasture. I felt like a race horse with a broken leg.
Jack: (upon the death of Tony Randall) I let more people into my life now. I never really had a chance to tell Tony what he had done for me while he was alive. Now I want the world to know.
Buck Houghton: (Twilight Zone Producer on Klugman's dedication to his craft in the episode " A Passage for Trumpet") Klugman took pains, for instance, to actually learn how to finger a trumpet. He got a good trumpeter to teach him how to do it.