Olivia de Havilland was a French-British-American actress.
She is best known for her part in Gone with the Wind (1939).
However, I remember her most fondly for her part in the psychological horror movie Hush…Hush, Sweet Charlotte (1964). In that film she is the evil Miriam Deering.
Above is the scene in Hush … Hush in which Olivia and Bette Davis get rid of the supposedly dead body.
Dyanne Thorne was an American actress best known for her film Ilsa, She Wolf of the SS (1974).
I actually saw that film.
Ilsa conducts sadistic scientific experiments designed to demonstrate that women are more capable of enduring pain than men are, and therefore should be allowed to fight in the army. Ilsa is also portrayed as having a voracious sexual appetite for her male prisoners, whom she then castrates and kills.
It plays with the tropes of male anxiety of sexual inadequacy and the fear of castration.
Her character was very loosely based on that of Ilse Koch.