Conversation so far:
How did the 1976 show come to be produced?
A new staging of Porgy and Bess was produced by the Houston Grand Opera in 1976 under music director John DeMain.
Who played Bess?
This production's original cast featured Americans Leontyne Price as Bess, William Warfield as Porgy.

Question: who else was in the cast?
Self-contained rewrite: Besides William Warfield and Leontyne price, who else was in the cast?