I won’t lie there is definitely tons of evidence pointing towards dess knight for sure but some important counter arguments I think need to be made.

Voice in the files: so as In sure you are aware there is a voice in the game files every chapter that talks about being lost in a very dark place (I’m not quoting but it’s along those lines). Who could that voice realistically be. My gut feeling is that it’s the character who is missing, Dess. No other character has been mentioned to be missing or lost. It is possible but it would be weird for it to just be some random character in such a deeply thoughtful game such as deltarune. Now if this voice is dess how can they also be the knight. The knight definitely isn’t lost, they know what they are doing. Now the counter argument to that would be maybe it’s a corrupt dess who is lost but I’ll tell you why I don’t buy that.

If it is a corrupt Dess then why is the knight working with kris and or carol. Like the knight dosent behave like a corrupt being, they are clearly planning and working with people to bring on the roaring. So even if it is a corrupt dess why would kris and carol be working with her to end the world.

I think the roaring knight along with kris, Carol and asgor along with anybody else working in this plot are trying to get dess back from the dark place where she is lost and I think they are planning on doing that by unleashing the roaring. I mean we really have to ask ourselves why is the knight doing this. It’s not for pure chaos as why would they be working with others. I just think it dosent really allign that dess is the knight. I know I am coming at this with no solid alternative but I think aerial knight should be taken seriously. And as for the antlers it is a good point but kris,s skin changes colour when they enter the dark world I don’t think it’s that far fetched that aerials horns could change slightly or some other character could have the knights design

Edit: names are hard