Kate O'Mara (born 10 August 1939, in Leicester) is an English film, stage and television actress. She is perhaps best known for her role as Caress Morell, Alexis Carrington's sister in Dynasty. She also played the villain, The Rani in Doctor Who.
After surviving the Eternity War, she returned to the universe to kill the Doctor as punishment for destroying Gallifrey. However after being betrayed by the Cybermen & realising that the Time Lords may still be alive in another universe, she renounced her evil & began working for UNIT alongside General Amanda Powell
