Draft:The Roaring Knight

• Comment: This was copied from https://deltarune.wiki/w/Knight. — Diannaa 🍁 (talk) 17:04, 15 August 2026 (UTC)

---

The Roaring Knight
Deltarune character
First game	Deltarune (Chapter 3, 2025)
Created by	Toby Fox
Designed by	Toby Fox
In-universe information
Gender	Unstated

The Roaring Knight, also shorted to The Knight, is the main antagonist of Deltarune. It serves as the final boss and Shadow Crystal boss of Deltarune Chapter 3, as well as the main antagonist of Chapter 4.

While it does not physically appear in Chapter 1 or Chapter 2, King and Queen both align themselves with the Knight after the Dark Fountains that it made gave form to Card Kingdom and the Cyber World. In Chapter 3, it works with Tenna to divert the heroes.

As demonstrated in Chapters 3 and 4, the Knight boasts tremendous power, and, like all Lightners, has the ability to create Dark Worlds via the Dark Fountains.

Appearances

The Knight is a tall, slender, sharply emaciated pitch-black silhouette with a white outline. Its helmet is diamond-shaped, with its opening resembling the visor of a frog-mouth helm. It can contort the shape to primarily resemble a visor, occasionally as a mouth, and rarely as a dark eye. Two long protrusions extend from the sides of the helmet, which resemble sharp three-pointed horns or antlers.

The Knight is a significant figure in the prophecy, which preordains its duel with the heroes. It is unknown whether the passages detailing its involvement are among Hometown's religious scriptures.

Chapters 1 and 2

The Knight does not appear during Chapter 1, and its whereabouts during that time are unknown. Instead, the party learns of it from stories primarily told by King and Seam. The Knight does not make a physical appearance in Chapter 2, though its involvement is occasionally mentioned.

The day after Chapter 1's events, the Knight created the library Fountain, forming a Dark World within the library. A video of this event plays in one of the rooms at Queen's Mansion, but there is too much smoke to identify the person creating the Fountain.

Chapter 3

After several failed attempts to keep the party occupied within TV World, Tenna explains that at some point after falling into obsolescence, he came into contact with the Knight, and he was told that he could have as many viewers as he wanted if he kept the party distracted. During the Sword Route, Tenna's NPC dialogue in the Original Game raises the possibility that these instructions were part of the secret deal that Kris made with Tenna earlier, indicating that Tenna, like the main antagonists of the previous Dark Worlds, might not have interacted with the Knight directly and could have been misled about its intentions.

Following an intense battle in the Cold Place, Tenna allows the party to leave along with Toriel, even though it goes against the Knight's wishes. After giving back Toriel, he is suddenly struck down from behind, severely injured with both of his arms severed from his body. The party confronts the attacker, who is revealed to be the Knight. It attempts to abduct Toriel, but after Susie halts it, it engages the party in battle.

If the Knight is defeated, its form starts destabilizing, and Susie tries to attack it with her axe. The Knight recovers and parries her, but a shard gets knocked off its sword, the Black Knife. Susie taunts the Knight and laughs, at which point the screen turns black and Susie is SWOONed in a huge slash, with Ralsei being similarly SWOONed right after. The Knight reappears, making Kris kneel at swordpoint in a motion reminiscent of a ruler "knighting" their servant. The cutscene then continues as if the party lost.

After the battle, the Knight resumes abducting Toriel again, but is interrupted by the appearance of Undyne, who throws spears at it. It then kidnaps Undyne instead, taking her through the Great Door of the Dark World, with Susie and Kris giving chase. Spotting someone in the distance, Susie grabs Kris's hand and chases them into the open shelter, but the doors slam shut before they can enter. Realizing they cannot get through for now, Susie goes back to the Fountain, and the shelter doors open slightly in front of Kris as the Chapter ends.

Chapter 4

When Susie tells Ralsei about the Knight's abduction of Undyne, he reassures her by claiming that he can sense that Undyne is not in immediate danger. He concludes that the Knight must have a goal beyond simply hurting people, as it would have "acted sooner" otherwise.

At some point after church service had ended, the Knight made two Dark Fountains there: one in the church's lobby, corresponding to the Dark Sanctuary, and one in the main hall of the church proper, corresponding to the 3rd Sanctuary.

Shortly after the party arrives in the Dark Sanctuary, the Knight appears at the later end of the Atrium, blocking the path to the Fountain. It knocks Susie away with a sword and destroys the ground between her and Kris, then fires a barrage of swords at Kris as they approach. If Kris reaches the Knight, Susie yells at them to attack it, but they do nothing, and the Knight fires an unavoidable line of swords at them. Either way, the duo is thrown off and sent tumbling deeper into the Dark World.

If asked about the Knight, the Old Man mentions that it flew through a locked door inscribed with the Delta Rune on the Study's second floor. He can later ask about the Knight after it has been unlocked.

As the party explores the Sanctuaries, they find the Knight is referred to by title in the prophecy's glass tapestries. A reference to Tenna's defeat, which took place at the Knight's hands, can be found later in the 2nd Sanctuary.

While searching for the solution to the organ piano puzzle, Susie is separated from the party, and Ralsei suggests Kris close their eyes and think about what Susie is doing. If the player refuses twice, Ralsei suggests that Kris closes their eyes in general, and the player is given the option to think of the Knight instead. This causes Kris to visualize the Knight taking off its helmet. However, Kris immediately begins thinking of Jockington instead before opening their eyes, preventing the player from learning the Knight's identity.

As the party approaches the Dark Sanctuary Fountain a second time, the Knight appears again. It fails to prevent the party from reaching the Fountain, and subsequently retreats through the Great Door leading to the 3rd Sanctuary before Susie can reach it.

In the 3rd Sanctuary, the Knight attempts once again to prevent the party from reaching the Fountain, destroying a pillar they would have climbed to and pushing them away with wind and swords. However, it is once again unable to stop them, in part thanks to the aid of either all the Darkners recruited by the party during their time in the Dark Sanctuaries, or, if none were recruited, Jackenstein's apparent sacrifice.

Once the party corners the Knight near the Fountain, Susie jeers that the Knight has never appeared in the Light World and relies on the Dark World to pose a threat; if the party can get past it and seal the Fountain, it might be powerless against them. The Knight laughs at Susie, and to Ralsei's protest, makes another Fountain within the 3rd Sanctuary, which petrifies and hatches into a Titan. The Knight is not seen again afterwards, and does not attempt to stop the party from defeating the Titan and sealing the Fountain.

Chapter 5

Throughout Flower Castle, the party comes across documents written by Asgore detailing the Knight's prior actions. In these documents, Asgore mentions "black shards", chipped pieces of the Black Knife, being left behind in the aftermath of the formations of Cyber World and a Dark World from "a long time ago". The documents suggest that the Knight has been active and making Dark Fountains long before the party first encountered it. In addition, Ralsei repeatedly warns Flowery that the Knight will arrive and capture Asgore if Flower Kingdom stays active.

When Kris seals the Flower King Fountain, the Dark World remains active, as a new Fountain has taken its place. The Knight soon arrives and captures Asgore. Flowery gives chase and engages the Knight in battle, but fails to inflict any meaningful damage due to the Knight's ability to resist his fabricated statistics. The Knight fatally wounds Flowery and leaves the Dark World with Asgore.

References

• Text was copied from deltarune.wiki, which is released under a Attribution-ShareAlike 4.0 International (CC-BY-SA 4.0) license.

This page will be placed in the following categories if it is moved to the article namespace.

Categories:

• Fictional knights
• Undertale and Deltarune characters
• Video game characters introduced in 2025
• Video game bosses
• Fictional characters who use magic
• Villains
• Fictional androgynes
• Fictional swordfighters in video games
• Fictional shapeshifters
• Fictional kidnappers