In the first episode Mandy explains to the chicken takeaway that one of her strengths is being able to swallow a tangerine whole. In the 2016 miniseries "Rovers", a character also claims to have this talent.
A woman of many talents - Diane Morgan not only wrote directed and starred in this excellent quirky series, you can see or more accurately hear her recently as the voiceover in Josh must Win.
Diane Morgan's character in the 2016 comedy series "Rovers" is also called Mandy. They're very alike so this may very well be the same person in both series.
One of the production companies, Witchcraft Industries, is Diane Morgan's own production company, and she is its only employee (as director, according to Companies House).