“Playing Joanna’s on-screen sister is guaranteed to be a laugh,” she added. “Who doesn’t love a family reunion SoHa style!”
Amandaland follows middle class Amanda and her two children as they adapt to life in South Harlesden – which she refers to, pretentiously, as “SoHa” – having been forced to leave Chiswick following her divorce.
It is a spin-off of Motherland, a comedy about motherhood starring Anna Maxwell Martin, which aired between 2016 and 2022.
Saunders will feature in the festive episode before a second series of the show airs in 2026, the BBC confirmed.