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Arya Stark (Maisie Williams), Game of Thrones
Although the youngest Stark daughter has been parted from her family, that's not the only reason we want to adopt her. The wide-eyed tween moppet won us over with her fierce and unwavering loyalty, brutal honesty (to the horror of glam older sis Sansa) and tomboyish ways in a land where girls are often relegated to second-class status. She may be small, but her spirit is mighty, and with her pipsqueak-sized sword Needle, she has this adorable contest all sewn up.