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In Game of Thrones, Season 7 Episode 6, "Beyond the Wall", one person is seen fighting wights and then falls into the crowd of wights.
See at 4:05 in
The part does not seem to be credited. The best-case scenario is the credit for "Wildling".
These types of characters are commonly referred as "Red-shirts". They are a part of the party of heroes, and exist only to die to show the audience that the situation is indeed dire.