Jennifer Saunders
Sister Gilpin
Russell Tovey
Colin Colman
Lorraine Ashbourne
Mrs Earnshaw
Vincent Franklin
Mr Salter
Julia McKenzie
Mrs Maudsley
Louis Ashbourne Serkis
Andy
Jessica Baglow
Dr Jess (uncredited)
Ray Burnet
Opera Goer (uncredited)
Darren Charman
George (uncredited)
Liam Edwards
Audience Member at the Opera
Minouche Kaftel
Mayor (uncredited)
Dennis O'Donnell
Patient (uncredited)
Linus Scheithauer
Opera Guest / Junior Board Member (uncredited)
Alfredo Tavares
Politician (uncredited)
Jon Wennington
Mayor's Husband (uncredited)