Produced by Wales-based Bad Wolf, the project was also a chance for Jones to go back home, with some filming taking place in south Wales.
The writer and actress said: “I recognise so many crew members I’ve worked with before, and it makes me proud that we’re creating a production like this here.
“Locations like St Fagans Folk Museum are places I’ve known since childhood.”
Jones said her co-stars, including Ella Bruccoleri as Mary, were a “joy” to work with.
But Jones said she found herself apologizing to Bruccoleri for “criticising and belittling” her while in character.
“She is awful to Mary – let’s not beat about the bush – and often quite cruel,” said Jones.
“But we come to understand why her attitude towards her middle daughter is the way it is.”
