Alas, I only just found out 🙁 This is news from September 2018:
The amazingly wonderful British actress Jacqueline Pearce, who rose to fame as Supreme Commander Servalan in BBC sci-fi drama Blake’s 7, died at the age of 74 shortly after being diagnosed with lung cancer.
The Press Association has reported that her friend John Ainsworth confirmed that she had passed away on Monday at her home in Lancashire.
She was in Dangerman, Doctor Who and lots of small parts in movies. Her performance in Blakle’s 7 though was seminal! I was so sad to hear she had passed 🙁