auditorium, where she introduces herself as Kira. The two of them fall in love, though Kira refuses to tell Sonny anything about herself. Sonny also meets and befriends Danny McGuire, a former big band orchestra leader turned construction mogul. He was once romantically involved with a singer in the 1940s who resembled Kira; her departure resulted in his own loss of creative passion. Kira encourages Sonny and Danny to open a nightclub at the auditorium called Xanadu, and the two begin working on the project as partners. All the while, Sonny and Kira begin to develop romantic feelings for each other. The night before the club's opening, however, Kira confesses to Sonny that she is actually Terpsichore, one of the Nine Muses of Olympus. She was sent to inspire the creation of Xanadu, but she cannot stay despite their mutual feelings. Sonny gets upset at the revelation, and Kira departs Earth having fulfilled her duty. Danny tells Sonny to keep pursuing Kira, encouraging Sonny not to give up on his ambitions like he did after his own muse left him. Sonny manages to enter Kira's home by roller skating into the Muses' mural. Inside the realm of the gods, Kira's father Zeus denies Sonny's plea to let Kira come back to Earth, and despite Kira's mother Mnemosyne interceding for Sonny and Kira, Zeus sends Sonny back to Earth. Kira professes her feelings for Sonny, and Zeus ultimately relents, allowing her to be with Sonny for "a moment, or maybe forever." Kira and the Muses perform at the Xanadu grand opening before returning to their realm. Sonny is initially saddened by their departure, but upon seeing a waitress who looks exactly like Kira, he stops her and asks to talk. Cast Olivia Newton-John as Kira (Terpsichore) Michael Beck as Sonny Malone Gene Kelly as Danny McGuire Matt Lattanzi as young Danny McGuire James Sloyan as Simpson Dimitra Arliss as Helen Katie Hanley as Sandra Fred McCarren as Richie Ren Woods as Jo Melvin Jones as Big Al Ira Newborn as 1940s Band Leader Jo Ann Harris as 1940s Singer Wilfrid Hyde-White as Heavenly Voice #1 (Zeus) Coral Browne as Heavenly Voice #2 (Mnemosyne) Darcel Wynne, Deborah Jennsen, Alexander Cole, Adolfo Quinones, Matt Lattanzi, and Miranda Garrison as dancers The Muses Sandahl Bergman Lynn Latham Melinda Phelps Cherise Bate Juliette Marshall Marilyn Tokuda Yvette Van Voorhees Teri Beckerman Members of the Tubes