These are the developments of "Madam Oh No".
Madam Oh No is the butcher's wife who butchered her husband and sells off his meat.
Her personality is one which is misleadingly bad. You get the sense that she is capable of doing the most evil of things, but something about her makes the audience sympathize with her and the reasons of her crime.
Quite a challenge to design such a character. Her personality is very much referenced from Judi Dench in "Notes on a Scandal". Her look is inspired from a rice-cooker.