Nikki Davis-Jones has had to withdraw from the Wicked UK tour, and will not join the West End production as Elphaba in October as scheduled.
Davis-Jones was supposed to join the cast at the Apollo Victoria on 27 October, having previously played the Green witch on the UK tour and on standby in the West End.
Her replacement in the West End will be announced "in due course".
Executive producer of Wicked Michael McCabe said: "We are all extremely sorry that she has had to withdraw from the tour and will be unable to join the London cast as previously announced. We all fully support Nikki's position and very much look forward to working with her again in the future".