who were the cast in it?
Mary Martin
South Pacific (musical)
For the role of Nellie, Rodgers sought Mary Martin, who had nearly been cast to originate the role of Laurey in "Oklahoma!" Martin was playing the title role in the touring company of "Annie Get Your Gun".
what is south pacific (musical)? It is a musical composed by Richard Rodgers, with lyrics by Oscar Hammerstein II and book by Hammerstein and Joshua Logan.
wiki:5253819
South Pacific (musical) [SEP] Casting and out-of-town previews
When Pinza read the book, he told Lester, "Sell me right away!" Pinza's contract for "South Pacific" included a clause limiting his singing to 15 minutes per performance. With Pinza's signing, Rodgers and Hammerstein decided to make his the lead male role, subordinating the story of the pair of young lovers. It was unusual on Broadway for the romantic lead to be an older male. For the role of Nellie, Rodgers sought Mary Martin, who had nearly been cast to originate the role of Laurey in "Oklahoma!" Martin was playing the title role in the touring company of "Annie Get Your Gun".