The one-off special, which has been filmed this weekend in central London locations and is named The Bishop of Dibley, will see Dawn reprise the role of Geraldine Granger.
It will hit TV screens on March 13 (in the UK) for Comic Relief’s Red Nose Day and will see Geraldine face competition for the bishop’s title.
It’s Geraldine Granger and best friend Alice Tinker! (Picture: BBC)
But it won’t be any old vicar she’s going up against – she’ll be facing competition from some of Britain’s best-loved comedy heroines.
A source close to the production told Mail Online: ‘Geraldine’s character assumes she is a shoo-in to become the Bishop of Dibley but the joke is that there are some other very unexpected names in the frame.
‘Some big names have been cast as the rivals but to name them would give away the joke.’