Possible Clues:

• Players I kept in and chastised
• Acting group from one theatre got director to read The Riot Act
• Severely criticised cadets’ gait when marching around
• Acting group, one kept in as punishment and reprimanded
• The players from one theatre got director to read The Riot Act
• List of actors I shut up, reprimanded
• Scolded
• Group seen playing I kept in and reprimanded
• Reprimanded actors I had placed around entrance
• Players I kept in school and told off