Grant O'Brien has been involved with

• Amélie: The Musical – Ensemble

  19:45, Tue 1st – Sat 5th April 2025 at ADC Theatre
  

• The Producers – Ensemble

  19:45, Thu 30th May – Sat 1st June 2024 at ADC Theatre
  

• Urinetown – Officer Barrel

  19:45, Thu 1st – Sat 3rd June 2023 at ADC Theatre