Question: Who played in the odd couple on broadway?

Disambiguated questions and answers:
context: The success of the film was the basis for the 1970–75 ABC television sitcom, starring Tony Randall as Felix and Jack Klugman as Oscar. Klugman was familiar with the role as he had replaced Walter Matthau in the original Broadway run. Neil Simon originally disapproved of this adaptation, but by the series' final season, he reassessed the show positively to the point of appearing in a cameo role.
question: Who played Oscar Madison in the odd couple on the original broadway performance?
short_answers: Walter Matthau
wikipage: The Odd Couple (play)
context: "The Odd Couple" premiered on Broadway at the Plymouth Theatre on March 10, 1965 and transferred to the Eugene O'Neill Theatre where it closed on July 2, 1967 after 964 performances and two previews. Directed by Mike Nichols, the cast starred Walter Matthau as Oscar Madison and Art Carney as Felix Ungar. The production gained Tony Awards for Walter Matthau, Best Actor (Play), Best Author (Play), Best Direction of a Play, and Best Scenic Design (Oliver Smith), and was nominated for Best Play.
question: Who played Felix Ungar in the odd couple on the original broadway performance?
short_answers: Art Carney
wikipage: The Odd Couple (play)

Long-form answers:
knowledge: content: The Odd Couple is a play by Neil Simon. Following its premiere on Broadway in 1965, the characters were revived in a successful 1968 film and 1970s television series, as well as several other derivative works and spin-offs. The plot concerns two mismatched roommates: the neat, uptight Felix Ungar and the slovenly, easygoing Oscar Madison.
wikipage: The Odd Couple (play)
content: The Odd Couple premiered on Broadway at the Plymouth Theatre on March 10, 1965, and transferred to the Eugene O'Neill Theatre where it closed on July 2, 1967, after 964 performances and two previews. Directed by Mike Nichols, the cast starred Walter Matthau as Oscar Madison and Art Carney as Felix Ungar.
wikipage: The Odd Couple (play)
content: Walter Matthau (/ˈmæθaʊ/;[1] born Walter John Matthow; October 1, 1920 – July 1, 2000) was an American actor.

He is best known for his film roles in A Face in the Crowd (1957), King Creole (1958) and as a coach of a hapless little league team in the baseball comedy The Bad News Bears (1976).
wikipage: Walter Matthau
content: Arthur William Matthew Carney (November 4, 1918 – November 9, 2003) was an American actor and comedian. A recipient of an Academy Award, a Golden Globe Award, and six Primetime Emmy Awards, Carney was best known for his role as Ed Norton on the sitcom The Honeymooners (1955–1956).
wikipage: Art Carney
long_answer: The Odd Couple is a play by Neil Simon that premiered on Broadway at the Plymouth Theatre on March 10, 1965, and transferred to the Eugene O'Neill Theatre where it closed on July 2, 1967, after 964 performances and two previews. The plot concerns two mismatched roommates: the neat, uptight Felix Ungar and the slovenly, easygoing Oscar Madison. Oscar Madison was portrayed by Walter Matthau, who is best known for his film roles in A Face in the Crowd, King Creole, and as a coach of a hapless little league team in the baseball comedy The Bad News Bears. Felix Ungar is portrayed by Art Carney, who was best known for his role as Ed Norton on the sitcom The Honeymooners.