Campaigners trying to secure the future of Liverpool's Neptune Theatre are to lobby the city council.
The Neptune was closed down in June 2005
They are hoping to raise awareness of the plight of the community theatre - which has been shut for two years.
Stars like Peter Kay, Paul O'Grady, Claire Sweeney and Steve Coogan have all trod its boards.
Former Brookside star Dean Sullivan chairs the Save the Neptune group which will be picketing outside the theatre on Hanover Street on Thursday.
Some £800,000 was allocated in 2005 to renovate the theatre, which was built in 1913.
The restoration work of the Grade II listed building, including redecoration, rewiring and asbestos removal, was supposed to be completed for the theatre's reopening in September this year in time for Capital of Culture in 2008.
But after a disagreement over rent between Liverpool City Council and theatre owners Hanover Estates, work ceased and remains unfinished.
The Save the Neptune group will gather outside the city centre theatre at lunchtime on Thursday.
They are hoping to put pressure on the council to re-open the venue.
Kevin McMahon, from Save the Neptune, said: "Historically and architecturally it's a wonderful theatre - it's an absolute gem.
"But it was also a theatre for the community and that's very important.
"The state it's actually in remains a bit of a mystery.
"We do understand that some of the renovations were actually started. Now the money has been set aside for this so why is it still not being done?"
Roger Jonas, also from the group, added: "You must remember that all the time there has been this delay the costs are increasing.
"So as the costs go up the likelihood of something being done diminishes.
"It's right in the heart of the new Grosvenor Liverpool One development - it's going to be a major embarrassment."