There are at least two artists called Theatre Royal: a music group and a syndicated British radio anthology series originally broadcast in the 1950s.
These are photos from concerts where Theatre Royal played, so they may be of other bands that played the concert as well.
Oliver Burgess
Theatre Royal Jul 22, 2022 Rochester, Kent, UK Uploaded by Darren Lovell
The Oast Community Centre Beer Festival Pint Glass
Swansea Sound / Theatre Royal / The Pastel Waves / Ski Lift Jun 24, 2022 Rainham, Kent, England Uploaded by Darren Lovell
Swansea Sound
Ski Lift
The Pastel Waves
Theatre Royal
Amelia Fletcher's flight bag and melodica