Lady Stoneheart is one of the most intriguing characters in the Game of Thrones book series. Shortly after Catelyn Stark's murder, her body is discovered by none other than Beric Dondarrion. He bestows her with something called the "last kiss." It's a rite practiced by Red Priests; they fill a deceased individual's mouth with flames and breathe fire into their body, once again bestowing life. With that, Catelyn is alive again, albeit still looking quite unfortunately like a corpse. Her skin is soft and mushy, her wounds have not healed, and most of her hair is gone. The rest is stark white. Lady Stoneheart roams the lands of Westeros, exacting her revenge on those who betrayed her son, Robb Stark.
The showrunners have already sworn up and down that Catelyn would not return as Lady Stoneheart, but does that mean we could meet a similar character in another way? In case you think Jon Snow is too far gone to be resurrected, it's possible he could become a Lady Stoneheart figure in lieu of Catelyn. Melisandre seems quite equipped to perform the last kiss, seeing as she's a Red Priestess herself. On a thematic level, Jon Snow would absolutely have grounds to wander the world, seeking revenge.
