Question: Who played in the odd couple on broadway?
Disambiguated questions and answers: question: Who played Oscar Madison in the odd couple on the original broadway performance?
Who played Felix Ungar in the odd couple on the original broadway performance?
answer: Walter Matthau
Art Carney
Natural Questions answer: Art Carney as Felix Ungar
Walter Matthau as Oscar Madison (from the Wikipedia article "The Odd Couple (play)")