The Theatre Royal archive weblog has been digging into the theatre's ghostly past.
"The Theatre Royal, Addington Street, Margate, Kent, is perhaps southern England's most haunted theatre. Opened originally in 1787, heir to over 200 years of tradition and holding slightly under two thousand patrons, this theatre. has been associated with many famous actors. Its most famous manager was Miss Sarah J Thorne, who guided its fortunes until 1894. Something of a martinet, Sarah Thorne made her theatre celebrated in the south of England, but from around 1894, the playhouse began to decline. Over the years it suffered a number of vicissitudes and was turned into a furniture store. It was reopened as a theatre in 1930 and subsequently it has been in turn a cinema, a theatre, and a bingo hall"
It's a good story and you can read on here!