Cast
- Olivia Newton-John as Kira (Terpsichore)
- Gene Kelly as Danny McGuire
- Michael Beck as Sonny Malone
- 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 ’40s Band Leader
- Jo Ann Harris as ’40s Singer
- Wilfrid Hyde-White as Heavenly Voice #1
- Coral Browne as Heavenly Voice #2
- Darcel Wynne as Background Dancer
- Deborah Jennsen as Background Dancer
- Alexander Cole as Background Dancer
- Adolfo Quinones as Xanadu Dancer
- Joe Mantegna (deleted scenes)
The Muses
- Sandahl Bergman
- Lynn Latham
- Melinda Phelps
- Cherise Bates
- Juliette Marshall
- Marilyn Tokuda
- Yvette Von Voorhees
- Teri Beckerman
Members of the Tubes
- John “Fee” O. Waybill
- Rick Anderson
- Michael Cotten
- Prairie Prince
- Bill Spooner
- Roger Steen
- Vince Welnick
- Re Styles
- Kenny Ortega, who also served as assistant choreographer
