Six And A Half Ways of Being Undead in "Game of Thrones"

Is Jon Snow really dead? That is the question that has been on everyone's minds since the finale of Season 5 (or since the end of ADWD)--including President Obama's. D. B. Weiss has said that Snow won't be back--"Dead is dead," quoth he. But of course, the learned reader knows that this phrase appears on the first page of A Game of Thrones, spoken by Gared, one of the Rangers. Royce responds, "But are they dead? What proof have we?"
Indeed. 
In fact, there are a number of ways to come back from the dead on GoT, as we've seen since the pilot episode. 
1) Wights, the risen dead in thrall to the White Walkers.
2) Mirri Maz Duur's resurrection of Khal Drogo.
3) Beric Dondarrion's resurrections by Thoros of Myr.
4) Those who seek death in the House of Black and White live again when the Faceless Men use their identities. 
4.5) Qyburn "saves" The Mountain from death (or brings him back?) and turns him into something...else.

Book bonus:
5) Aeron "Damphair" Greyjoy serves the Drowned God as a priest, after he was drowned and resuscitated. 
6) Varamyr Sixskins, a warg, who lives on after his human death in his wolf One-Eye.

Any other examples?