I'm guessing you've installed my K1 Gameplay Improvement Demo with a plethora of other people's mods and now you're experiencing some pretty funny conflicts, well: don't panic (yet), I'm here to explain what my K1GI mod was 'supposed' to do and how the conflicts have messed it up. Keep in mind I'm only explaining what I can see, I betcha the rest of the game will be as chaotic or even worse than the chaos which is the Endar Spire.

First off, my 'rebalances'. In my mod, I've changed the balances of the feats, skills and attributes in the mod. You should get a bit more attribute points, new class skills and reworked feats. In this mod, all the ranged attack feats, all the sneak attack feats and all the specialist and focus blaster feats are gone, this is because in my mod you get those feats through items which give them to you for free. For example, if you pick up a Heavy Repeating Blaster you might get Improved Rapid Shot for free whilst a Sniper Rifle would give you the Sniper shot feat etc. Blaster focus/specialist feats and sneak attack feats are granted through mask items. Also in the mod, but maybe not in your game, any character except T3 could get themselves the Lightsaber Focus Feat but not the Saber focus/specialist feats as only Jedi can get those. Because this mod also removes the Jedi Defence requirement on robes you could have every party member wear Jedi Robes and wield Lightsabers if you were that ambitious. The idea is that there can be more customisation with your characters so that Canderous with every melee feat can switch to his Heavy Repeater without much of a struggle adapting to it.

In a recent update, I've made it so that it takes longer for your player to level up so that, alongside the feat balances, should hopefully prevent the player from learning everything too early on. (This might be a tad experimental though, when the mod goes from Demo to Beta I will take a strong stance on balancing)

Next feature, Trask "Bruh" Ulgo is a Twilek Jedi Master in this mod. Do you remember how the old Jedi From The Start mods added a Twilek Trask which was 'your' Jedi Master? Well this mod does that again except he ain't your Jedi Master but rather he is your Jedi Commander and your player is the soldier serving under him. I'm guessing the character file for trask was replaced by a vanilla one, hence is why he ain't no Jedi, has no Lightsaber and has his human face. I'm also guessing your UI mod stretches Trask's portrait, but if you look real close that portrait is his intended appearance (Minus the 'Bruh' aspect of it). His dialogue is unchanged hence is where his 'Jedi' dialogue keeps coming into play.

The Twilek Captain is also a bug, in my mod she was actually a generic 'Sith Commander' as shown below.

I'll give you an idea of what's happened: The Sith Commander appearance is on line 400 for example, in K1R Major Hurka is also on line 400, what should've happened is that the TSLPatcher would merge the 2da files together so that Hurka would appear on line 401 so that it becomes compatible. Something seriously wrong has happened, as a result the Sith Commander has been replaced by Hurka and a new generic Republic Officer with a Soldier Helmet has been replaced by Selven (The Czerka Twilek and the Civillian are from my K1GI so I'm not sure what's happened their). The reason why Hurka has a Twilek head is very similar to why the Commander is Hurka, the Hurka appearance on line 400 has the head set to head 100 for example, in K1R head 100 is Hurka's head whilst in K1GI its the Twilek and for some reason Hurka's head didn't replace the Twilek hence is why your Hurka is a Twilek (Personally I don't recognise the Twilek shown so it could be from someone else mod, maybe an Ebmar mod, but I assure you I've added a bunch of Twilek heads so it could be)

You've installed JC's TSL Robe for K1 mod, haven't you? That mod isn't compatible and for a very good reason, I've integrated TSL Robes into the mod my own way making JC's Robes unnecessary. What my mod does is that it keeps the K1 Jedi Robes exactly as they are in vanilla, it also adds in more Jedi Robes for you to collect and wear but I've replaced the Revan Robe model with the TSL Robe robe thus allowing the player to use TSL Jedi Robes and K1 Jedi Robes at the same time. JC's Robes replaces the K1 Jedi Robes with TSL Robes, which is what has broken the Jedi Robes seen in your game as that robe texture is a K1 Robe texture.

So, in vanilla Trask doesn't have an underwear model so when he 'took his clothes off' he did that in Vanilla as well but you just couldn't see it. A mod you've installed has added an underwear model for him, hence the bug. He runs into the room unarmed because he's supposed to be wielding his purple Lightsaber, because he has no Saber feat to wield it that's why he has no weapon, the non-existent Force dialogue is obviously from the Trask a Jedi feature.

Carth here was supposed to wear Republic Uniform which I added in my mod, once you're on Taris he should be back to normal as his Republic clothing is a new appearance (Meaning that on Taris he should be normal as he has his vanilla look, that is unless something broke him down there as well). This mod comes with its own NPC Overhaul, a very severe version of it. My mod creates a plethora of brand new commoners, with new commoner clothing from TSL and K1EP, new heads (both human and alien) from TSL, K1EP and ROR, and brand new variants including Onderon Noble variants, Dantooine Hobo variants and... Scoundrel and Scout variants, the scout variant is what you see Carth as. I also have Republic Soldier variants where you saw Twilek Hurka, Twilek Czerka, Selven and that commoner earlier.

Fun fact: I haven't included the Sith Stalker encounter in my mod, I have included the regular Sith Stalker in later parts of the game.