Sir Ian McKellen will not appear when the run of Player Kings resumes in the West End on Thursday night after his fall from the stage.
The veteran actor, 85, was performing at the Noel Coward Theatre when he lost his footing in a fight scene on Monday.
He was taken to hospital after the accident, with performances on Monday, Tuesday and Wednesday all cancelled to give him time to rest.
The final London performances are on Thursday, Friday and Saturday.
While he said on Tuesday he is “looking forward to returning to work“, a post on social media on Thursday confirmed his understudy David Semark will go on instead.
“David Semark will be playing the role of Sir John Falstaff for the final three scheduled performances of Player Kings at the Noel Coward Theatre in London,” the show’s X account said.
Organisers added they look forward to Sir Ian returning to the production, which begins a national tour in Bristol on Wednesday 3 July, before stops in Birmingham, Norwich and Newcastle.
Sir Ian was said to be in a scene involving the Prince of Wales and Henry Percy when he fell from the front of the stage.
He was heard crying out in pain as staff rushed to help, with the theatre later thanking doctors Rachel and Lee, who were in the audience at the time.
Audience members were told the remainder of the evening performance had been cancelled and were evacuated.
Paul Critchley, from Downham Market in Norfolk, was there and said it was a “shock” to witness the fall.
“The house lights came up very quickly as the stage management and front of house team dealt with the incident,” he said.
“We were evacuated immediately so that Sir Ian could be treated in privacy.”
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