Like the other episodes in season 6, the "Mazey Day" cast helps keep Black Mirror's legacy strong as they deliver highly entertaining performances. First released in 2011, Black Mirror is a British anthology series that follows a similar format to the popular horror sci-fi show, The Twilight Zone, as it uses standalone stories to keep the audience engaged. While most of the stories are often set in a dystopia and have disturbing twists and shocking moments, the Netflix series has continued to receive critical acclaim for the unique way its creator, Charlie Brooker, explores the dark side of technology as well as several societal issues.
https://screenrant.com/black-mirror-mazey-day-cast-character-guide/