Which Characters Wield The Subtle Knife In The Trilogy?

Will Parry is the primary wielder of the subtle knife in Philip Pullman’s trilogy. He’s the one who learns to use its unique power to cut windows between worlds and who bears the consequences. Lyra touches and uses the knife in key scenes too — she isn’t the constant wielder, but she does use it when the plot demands. The original forger in Cittàgazze crafted and used the blade before Will ever saw it; his fate is what throws Will into possession of it.

Plenty of other characters either try to take it or are obsessed with it — Lord Boreal, the Magisterium’s operatives, angels like Metatron who want control of power — but they don’t become its true bearers. For me, the knife’s role goes beyond a weapon; it’s a narrative hinge that forces characters into impossible choices.

There’s a clear hero of the knife: Will Parry. He’s the one who actually carries and uses the subtle knife (Æsahættr) for most of the action in 'The Subtle Knife' and into 'The Amber Spyglass'. Will gets it in Cittàgazze after its maker is killed, and the knife becomes both his burden and his tool — it literally cuts windows between worlds and figuratively slices open huge moral choices for him.

Lyra Belacqua (Lyra Silvertongue) also handles the blade at times. She’s not the primary wielder, but she uses it in moments where it helps her and Will, and its presence shapes her journey across the trilogy. Before Will, the craftsman in Cittàgazze who forged the knife had it and made the instrument of passage; his death sets the whole chain of events in motion. Beyond those three, lots of other characters try to seize or manipulate the knife — Lord Boreal and agents of the Magisterium show interest, and powerful beings like angels and the Authority’s allies covet it — but they don’t become the steady wielders the way Will (and briefly Lyra and the original maker) do. I still get chills thinking about how such a small object carries so much weight in the story.

Short and direct: Will Parry is the central wielder of the subtle knife, and Lyra uses it on occasion. The original maker in Cittàgazze owned and used it before Will discovered it. Other characters — villains like Lord Boreal, agents of the Magisterium, and powerful beings such as certain angels — try to seize or exploit the knife but don’t become the sustained wielders.

I love how Pullman turns the knife into more than a weapon; it’s a storytelling device that forces choices and consequences, which is why those few who actually wield it matter so much to me.

I’d put this simply: Will Parry is the knife’s main handler, Lyra borrows and uses it at moments, and the mysterious craftsman in Cittàgazze is its first known wielder since he forged it. That’s the core trio of people who actually wield the subtle knife across 'The Subtle Knife' and 'The Amber Spyglass'.

If you widen the net, a number of antagonists and cosmic figures try to possess or manipulate the knife — Lord Boreal, operatives of the Magisterium, and celestial players like Metatron are all drawn to it. Most of those attempts are about control or domination rather than learning to wield the knife’s delicate, world-cutting function. What fascinates me is how the knife’s practical use (cutting windows, self-defense) is inseparable from its symbolic role: it literally opens and closes possibilities, and only those with the particular need, courage, or burden (like Will) become true bearers. That mix of utility and symbolism is what makes the knife scenes so tense and memorable to me.

I'll keep it compact and chatty: the main wielders are Will Parry and Lyra Silvertongue. Will is the central bearer — he’s the one trained and charged with using the knife to cut windows between worlds in 'The Subtle Knife' and beyond. His relationship with the blade is long-lasting and shapes many decisions he makes; the knife isn’t a prop for him, it’s a burden and a responsibility.

Lyra uses the knife at crucial points too, though she never becomes its steady guardian the way Will does. She handles it when the plot demands and her choices around it are tightly bound up with her own bold, impulsive nature. Other characters touch, seek, or temporarily grab the blade — the maker in Cittàgazze and several antagonists and celestial figures are involved — but Will and Lyra are the ones who truly wield it in ways that matter to the story. I still think about how Pullman made the knife feel alive with consequence; it’s such a neat storytelling device that brings out the best and worst in the characters.

Only two characters really take on the role of wielding the subtle knife in a sustained, meaningful way across the trilogy: Will Parry and Lyra Silvertongue (Lyra Belacqua). Will is the one most closely associated with the blade — he literally becomes the knife-bearer, learning how to use it to cut windows between worlds and carrying the weight of that responsibility. His relationship with the knife drives a huge amount of his coming-of-age arc in 'The Subtle Knife' and ripples through the rest of 'His Dark Materials'. Will’s handling of the blade is never just a neat skill; it’s tangled up with his family history, his moral choices, and the personal sacrifices he makes as the story pushes forward.

Lyra’s connection is different but crucial. She doesn’t become a long-term wielder in the same way as Will, but she does use the knife at important moments and the two of them share a bond around it. In terms of plot and theme, Lyra’s interaction with the knife highlights her curiosity, her stubborn courage, and how destiny and agency intersect for her character. The knife functions for her as both a tool and a symbol — a way into other worlds but also a mirror showing the costs of crossing boundaries.

There are other people who handle the knife or try to possess it: the maker in Cittàgazze who forged it, and a range of antagonists and celestial beings who covet or assault it during the course of the trilogy. But none of them wield it with the ongoing responsibility and narrative focus that Will does, and Lyra’s use is more intermittent and situational. The blade in 'The Subtle Knife' ultimately belongs to the story as a moral and literal hinge between worlds — and for me it’s one of those elements that turns what could be simple fantasy gadgetry into something with real emotional heft. It still gives me chills imagining Will standing at a threshold, knife in hand, deciding which world to step into next.