Robert Weede's understudy, Robert Rue (a student of Weede's), went on for Weede at the last New York preview, which was on Monday, October 9, 1961. According to a report in the New York Times, Weede had come down with "a respiratory infection and other inflammations." It was announced that the opening might be postponed till Friday, but Weede was well enough to go on as scheduled for opening night on Tuesday, October 10.
In September 1962, Molly Picon took a 10-week leave of absence to make the film Come Blow Your Horn. She was replaced by Hermione Gingold, who took over on September 4, 1962. Gingold continued in the role through November 10, after which Picon returned.