By Steve Green: Jacqueline Pearce (1943-2018): British actress, died September 3, 2018 aged 74. Most famous for playing the villainous Servalan in 29 episodes of Blake’s 7 (1978-81). She also appeared in The Plague of the Zombies and The Reptile (filmed back-to-back) and one episode of The Avengers (all 1966), one episode each in the anthology series Haunted (1967), Dead of Night (1972), Leap in the Dark (1977) and Shadows (1978), plus three episodes apiece of Doctor Who (1985) and Dark Season (1991), as well as providing a voice for a 2001 episode of the audio webcast Doctor Who: Death Comes to Time.
There was allegedly a plan at one point for her and Paul Darrow to cameo in Doctor Who as two unnamed characters who would clearly be Servalan and Avon from Blake’s 7. For her appearance in the CD mini-series The Actor Speaks, she performed a piece written for her by Tanith Lee.