A central character in Breaking Dawn, Renesmee Cullen is the ultimate mary sue baby. She's gorgeous, everyone loves her and she stops the big fight. She's really quite the disgrace.
Full Name: Renesmee "Nessie" Carlie Cullen. ....Really? RENESMEE?
Renesmee Cullen: Let me touch your forehead.
The Volturi: Oh ok, we won't kill you now because you are so perfect.