Mistborn · Character

Demoux

Also known as Captain Demoux

Minor
First seen · Book 1 · Ch. 21

Captain Demoux has the contained, orderly presence of a young soldier trained to hold his ground. Beneath that discipline is a plainly human earnestness, visible in the moments when his composure gives way to a blush.

Gender: male
Age: early 20s
First appears: Book 1 · Ch. 21
Books: 4

Demoux begins as a disciplined young captain in the rebellion against the Final Empire, evolves into a devoted priest-general of the Church of the Survivor, and is later glimpsed only in passing centuries afterward. Across the original trilogy his physical transformation—from earnest, clean-shaven officer to scarred, balding veteran—mirrors his deepening faith and the brutal cost of leadership. By the time of The Lost Metal he has become little more than a legendary name, underscoring how the Age of Ash has given way to a new era.

Description

Demoux is a young man in his early twenties, carrying himself with military discipline. His height, build, skin tone, hair, eyes, and facial features are not specified. His described clothing includes a studded leather cuirass, and he is also seen holding a spear; his presence is controlled and soldierly, though he can blush when embarrassed. A fair-skinned young man in his twenties with short dark hair and a clean-shaven youthful face that appears earnest and often lights with excitement, Demoux looks younger than his actual age. He wears a meticulously neat and smart military uniform with obvious pride, his athletic build and disciplined stance reflecting his position as a dedicated captain of the palace guard. Standing alongside veteran soldiers, he projects sincerity and reliability through his animated expressions and upright bearing in the ash-covered capital of Luthadel. A young human man with a balding scalp, missing scalp hair, and numerous scars, including a scar on his cheek. He looks pale while recovering from a prolonged illness. He wears military clothing or gear; in the later battle he is bloody, with one arm ending in a tourniquet and a crushed leg. No visual details are supplied for Demoux. The text does not describe their age, build, complexion, hair, eyes, face, attire, or demeanor.

Connections

Family & partnersFriends & mentorsRivals

A
Aslydinlovers
Meets and falls in love with Aslydin during the siege of the Pits; their bond forms amid shared hardship and endures beyond the immediate crisis.
Kelsierfollower-priest
Transitions from battlefield soldier to high priest of the faith built around Kelsier’s martyrdom, shaping the church’s doctrine and reach.
Vinchurch follower
Begins as a reverent follower who regards Vin as the prophesied Lady Heir; his devotion helps establish the Church of the Survivor and never wavers.

Story so far

BOOK 1Mistborn: The Final Empire
- Leads camouflaged soldiers during the rebellion
- Participates in a duel and later stands guard with a spear
- Shows visible shame when ordered to lower his weapon
BOOK 2The Well of Ascension
- Serves as captain of the Luthadel palace guard
- Publicly reveres Vin as the Lady Heir of the Church of the Survivor
- Maintains strict military bearing amid the city’s ash-covered siege
BOOK 3The Hero of Ages
- Survives a koloss blade strike that leaves a permanent bald patch
- Commands forces during the siege of the Pits of Hathsin
- Begins a romantic relationship with Aslydin
- Leads the Church of the Survivor as its high priest-general
BOOK 7Mistborn 07 - The Lost Metal
- Mentioned only in passing, signifying his enduring legendary status