<Li> Katherine "Kate" Kavanagh: Ana's best friend and Elliot Grey's wife </Li> <Li> Elliot Grey: Elder brother to Christian Grey and Mia Grey and Katherine's husband </Li> <Li> Elena Lincoln: Grace Trevelyan Grey's former friend and Christian's former Dominant . One of the main antagonists in Fifty Shades Darker </Li> <Li> Dr. Grace Trevelyan - Grey: Christian's adoptive mother . </Li>

What happens in the last fifty shades book