How many brothers can say that
they've killed a White Walker and a Thenn?
Game of Thrones Season 5, Episode 1
One of the tennis balls
came off his WALKER
The Big Bang Theory Season 7, Episode 14
how in seven hells
did you manage to kill a White Walker?
Game of Thrones Season 4, Episode 9
He killed a White Walker.
Game of Thrones Season 6, Episode 6
Everyone seems to forget that I was
the first man to kill a White Walker.
Game of Thrones Season 8, Episode 2