In "Game of Thrones" season 6 finale, Maisie Williams' character Arya Stark in "Game of Thrones" is done with her stay in the Braavos' House of Black and White. The newly-trained assassin is to make a comeback, and for a vengeance.
Going back to Westeros, his first target were the Freys, and for a good reason, according to Romper. Frey is among the men responsible for the Red Wedding which took the life of Stark's mother Catelyn Stark, brother King Robb Stark as well as her sister-in-law, Robb's wife, Talisa Stark. The Red Wedding was one of the bloodiest events in the show, where the Freys betrayed the Starks, desecrating their bodies, courtesy of the plot made by the Lannisters, the Boltons and the Freys.
During the time of King Stark, his army marched into the Twins for Red Wedding with lots of crossbow bolts and daggers. There were three people who were behind the violation of guest right - Tywin Lannister who planned the betrayal, Roose Bolton who put the knife in the belly of the young king and Lord Walder Frey who laid the trap.
Out of the three, only one is left alive, Lord Walder Frey. Lannister and Bolton were both killed at the hands of a family member and Frey may end up with a similar fate. Before "Game of Thrones" season 6 finale, fans predicted he could end up in the hands of an assassin who may wear his sons' face, according to Mic.
The fan prediction could not be less accurate. The younger Stark daughter indeed killed Frey after she did his two sons - Black Walder who took the life of her mother, Catelyn, and Lothar Frey who stabbed to death her brother's pregnant wife, Talisa. The young Stark assassin who was in disguise served Frey his supper, a pie, which has his two sons chopped up and baked.
"My name is Arya Stark," she said while removing her face mask. "I want you to know that the last thing you're ever going to see is a Stark smiling down as you die."
The Stark girl then slit Frey's throat and smiled as promised. One of the names on her death list was officially crossed out.
Here's the young Stark assassin killing Frey.