Denise Welch has quit the Newcastle Times Square pantomime, Jack and the Beanstalk.
The production, which was due to open for school previews on Monday, has been postponed after reported technical difficulties.
A spokesman for the production company, NS Pantomimes, says the planned performances could not go ahead as planned.
However the panto, also starring Emmerdale actor, Adam Thomas is scheduled to start today, with a charity performance this evening.
An understudy will take over from Denise, who was due to star as Mother Nature.
Customers who have been affected by the cancellation and rescheduling of performances are asked to contact the regional sales line on 07741477660 or 0333 666 3366.