|The title of this article is conjecture based on information revealed in the A Song of Ice and Fire novels or related material and may be subject to change.
- "Duncan! Hold the line! Hold the line!"
- ―Jon Snow to Duncan
Duncan accompanies Jon Snow on his expedition to Hardhome to convince the wildlings to join him at the Wall. When the White Walkers attack the settlement and their wights attempt to break through Hardhome's gates, the Free Folk attempt en masse to board boats to reach safety. Jon orders Duncan to hold the line.
|Season Five appearances|
|The Wars to Come||The House of Black and White||High Sparrow||Sons of the Harpy||Kill the Boy|
|Unbowed, Unbent, Unbroken||The Gift||Hardhome||The Dance of Dragons||Mother’s Mercy|
In the books
In the A Song of Ice and Fire novels, the only Duncan mentioned as part of the Night's Watch is Duncan Liddle, known as Big Liddle, the eldest son of Torren Liddle, the head or clan chief of the Liddles, one of the northern mountain clans.
Duncan Liddle is first mentioned in the Appendix of A Dance with Dragons. He is not mentioned as being part of the expedition to Hardhome.