Lyanna Mormont (Bella Ramsey)
Who: Named after Ned Stark’s dead sister (Jon Snow’s biological mother), the Lady Mormont is the fierce young head of House Mormont of Bear Island. She is the cousin of exiled Ser Jorah Mormont, who is loyal to Daenerys Targaryen.
Last seen: At Winterfell, making men feel like mice and declaring Jon “The King in the North!”