The BBC used AI (and an actor) to bring Agatha Christie to life for its writing masterclass series

Engadget 

The BBC announced a new addition to its Maestro series of masterclasses, featuring its first posthumous teacher, Agatha Christie, presenting her writing tips in 4K video. The best-selling author of literature in human history teaches an 11-lesson course on writing mysteries, and the BBC seems very aware of the issues circling AI, which provokes a mix of intrigue and, honestly, wariness. Christie, who died in 1976, has had her likeness composited through a blend of licensed images, limited footage and past audio recordings. That data has been blended with actor Vivien Keene, who'performs' the words of Christie on video. This is a more cautious approach.