Jemma Redgrave

Jemma Redgrave played Kate Stewart in The Power of Three, The Day of the Doctor,   Death in Heaven, The Magician's Apprentice, The Zygon Invasion and The Zygon Inversion. She also voiced Lana Merrion in the Big Finish Doctor Who audio story Mistfall. She is the niece of Vanessa Redgrave.