More than 100 staff face losing their jobs at the Theatre Royal in Plymouth.
It was announced on Monday 22 June that the charity has begun redundancy consultations, affecting almost a third of all staff.
The theatre's Chief Executive says the revenue lost by the Covid-19 pandemic is the reason jobs are at risk - a move he said is "painful but unavoidable".
Since lockdown began three months ago, the venue's income has been slashed by more than 90%.
A number of stars have shared their disappointment at the news:
The loss of 91% of its revenue since March is due to productions being axed and refunds being issued to customers.
Recently, TRP’s active staff members volunteered to reduce their salaries by 20% in a bid to support the charity.
Though an opening date for TRP has yet to be confirmed, tickets for productions in 2020 remain on sale, including the Christmas pantomime, Aladdin.