Five-time Tony nominee Kelli O’Hara has joined the cast of NBC’s Peter Pan Live!She will play Mrs. Darling, wife of George Darling (Christian Borle) and mother of the Darling kids, opposite Allison Williams’ Peter Pan and Christopher Walken’s Captain Hook. Craig Zadan and Neil Meron are executive producing the live special, NBC’s follow-up to its hugely successful live staging of The Sound Of Music, which the duo also produced. Peter Pan Live! is slated to air December 4.