Astarion

normal - Why do beautiful people taste better? It hardly seems fair on the ugly - they have such wonderful personalities. - Ugh. Strahd wouldn't put up with this shit. - More like Drizzt Don't'Urden - no. No that's not funny. - Villains! Dissemble no more, I admit the deed! Tear up the floor - here, here! It is the beating of his hideous hea- oh, no, that's his brain. Where did I leave that heart?

combat: - I'm trying to focus on murder. - *Humming.* - I shot a svirfneblin in Menzoberranzan just to watch him die. - I should've been a drow. They have such stylish armour.

stealth - Shhh. Just think sneaky thoughts. - Shut up, shut up, SHUT UP. - Be very, very quiet - I'm hunting idiots. - I've got a brand new torture chamber, so come and play with me.

Karlach

normal - NOTE TO ACTOR/DIRECTOR: Blow a raspberry at the player. - Don't. Poke. The Karlach. - Who am I? - My eye!

combat - Eyes on the prize - we need to win this! - Not every soldier should've made it out of training. - Eyes on victory, tummy on dinner. - I ought to just burn this whole thing down.

stealth - My back can't take much more of this. - Not now, I'm being a sneak! - I'm getting too old for this nonsense. - I'm not built to crouch.

Gale

normal - I hope Halaster takes good care of Tara while I'm away. - Sembian wine; Cormyrian boar; Waterdhavian conversation. It's the little things you miss while on the road. - Oh, what a tangled Weave we web! - All the world's my stage and you're just a player in it.

combat - Just go for the Magic Missile and fire away. Never fails. - Don't make me go all Edwin Odesseiron on you. - Get. Out. Of. My. Head. - I really wish I could cast a Hold spell on you.

stealth - You made me hide, don't make me come seek you. - Gods, it's like trying to sleep with a mosquito in the room. - A little privacy please. - Stop it - that tickles.

Wyll

normal - Could do for a brew. - Where there's a 'Wyll', there's a 'y'. - Ever get the sense that someone's watching? - So two halflings walk under a bar...

combat - Can't hear myself think! - Wear your scars proudly. - As my father once told me: 'Can we get on with it?' - I find moderation is key.

stealth - Bad time for an itch. - Could do for a brew. - So two halflings walk under a bar... - Shush. No, really. Shush.

Lae'zel

normal - Must everyone be so exhausting? - Weapons high. Standards higher. - Is perfection too much to ask? - Pride is a virtue.

combat - I will know my queen! - There is no right or wrong, only truth. - What is the point, if not victory? - You are right to fear me.

stealth - Hush already. - There is no wisdom in madness. - Is perfection too much to ask? - There is but one way. Vlaakith.

Shadowheart

all modes - I wonder how I'll feel when I remember everything. - Strange. I've had more freedom this past while than my whole life... - Have to keep focused. Can't afford to get attached - to anyone. - If I succeed, maybe I'll be allowed a pet... ugh, stop being silly.

Halsin / his voice is currently bugged :(

normal - What I would not give for a chunk of fresh honeycomb... - Such attention... I never realised I was so popular. - Are you feeling lonely, perhaps? - Unwise, perhaps, to poke a bear this much...

сombat - Battle is afoot - you can poke me once we are safe. - Perhaps try attacking the enemy? - Admirable stamina, yet terrible priorities. - You are insistent, are you not?

stealth - Most consider it unwise to poke a bear. - My, you are eager, are you not? - Please. I am trying to be stealthy. - Calm yourself. There is plenty of me to go around.

Jaheira

normal - Oh, calm down. I'm happy to see you too. - I would poke you back, but I fear that's what you want. - My, such strong wrists. - Well you certainly have the 'omnipresent' part down, don't you? - Please go poke the ranger instead.

combat - You have my attention - now do something with it. - What? What do you want!? - Do you know, I begin to wish they had never brought me back. - Yes, yes, have your fun. It isn't you they're trying to kill.

stealth - Dry those sweaty palms and let us try this again, shall we? - Argh, my knees! Oh. It was a twig. - Would that I could hide from you, too. - Careful, or I will take your toy away from you.

Minsc

normal - ARGH! My EYE, Boo! They went for my EYE! - Know that if you poke Boo, no higher dimension will keep you safe! - Heehee. Heeheeheehee. - Well, Boo? How do you want to do this?

сombat - Are you perchance a squeaky wheel in need of a kick? - I am armed! Armoured! And entirely sick of your foolishness. - I begin to grow annoyed. It is well for you that Boo does not let me learn the bad words! - Ignore them, Boo. Let them gaze deep into their own abyss, and wonder just what it is they are trying to achieve.

stealth - A little to the left? But not so hard you make me giggle. - Boo...? Are you dancing down there, or...? - Hush! I am surprising Boo for his birthday! He is... uh... eh... how old do hamsters get...? - I am the night. A pity, then, that it is so bright out.

Minthara

2 things caught my eyes:

1) Great physical fitness, and good reflexes. (For your reference, Gale & Wyll are the two companions who have the highest Con: 15. I put everyone's sheets at the bottom of the post.)

His Con and Dex are... very high?? I mean, higher than Karlach and Lae'zel...????

Note 1: I suspect it could have something to do with his background as Mystra's chosen, as they are somewhat "transformed" when they agree to become the goddess's chosen. A topic for another day since I haven't quite figured it out yet, for anyone who is interested there's a chapter about it in The Seven Sisters. Also, I have little clues on how much chosen lore credit Larian was taking into account while designing him, or how Mystra's "taking back the given ability" works. Note 2: Again, Mystra's chosen are often sent on missions that involve a lot of traveling according to Elminster's series. Mystra also mentioned that Gale and she used to have adventures together, which leads to an assumption: despite his preference he might be traveling quite a lot until he was cast aside and quarantined himself in his tower. Might be the type of scholar who is very keen on field studies?

Note 3: Can someone undress Elminster to exam my theory please??xD Neh won't work I think all human might share same body model in game

Come to think of it, there was a party banter between Karlach & Gale that went like :

Karlach: Whoa! Almost slipped there. Gale: You wouldn't be the first, I'd wager. It's been some time since these walkways felt the carpenter's hammer. Karlach: You gonna catch me if I eat a brick? Gale: With my reflexes? I'd catch you before you so much as stubbed a toe.

At first I thought that was a sarcastic joke but, seems like it wasn't? Also this:

Karlach: Ready to enter the belly of the beast? Gale: It's the stairs I'm dreading. I shall close my eyes, and pretend I'm climbing my own, far superior tower in Waterdeep. Karlach: In that case, welcome home.

...So it seems when I pictured him as a homebody, I should reimagine the concept of home... His has...lots of stairs? Just walking around in the tower could be counted as a workout, sort of thing? Note: I don't think the place he shows in the Act 2 cutscene is his tower. Otherwise, aren't these neighbors pretty much doomed?

2) Not THAT smart. Well, I love him, so I will speak in his defence: [1] He has a warm(s) digging holes in his brain. [2] Poisonous magical bile running in his blood. Maybe he's just not at his best, makes sense, eh? Wyll mentioned he is nerfed after tadpole too. After all, this man obviously memorized a DICTIONARY:

Gale: You promised to stay in Waterdeep. 'Promise,' verb, meaning to swear something will or will not be done. Tara the Tressym: And I decided 'will not'. And a good thing, too. You look like you haven't had a good meal in days

Player: When I said we could be more than friends, you answered 'perhaps'. What does that really mean? Gale: If I recall correctly, the Waterdhavian Dictionary of the Common Tongue of Faerûn defines it as an adverb that conveys the meaning of 'it may be that', or 'possibly'. Gale: Sorry, sometimes I just can't help being quite insufferable. In seriousness, I'm glad you asked that question.

Along with a bunch of you-may-never-need information:

Everything about ceremorphosis? Myconid? Why in the world have him read about Cazador??? And how can he not know the distance between Waterdeep & Baldur's Gate, even Karlach ―who spent a decade, which is likely half of her life in hell― knows better geography than him. Gale either totally ignored the subject or portaled everywhere; distance meant nothing to him?? Uh, but you can't take party banters too seriously; it's buggy. How could a bug bit Karlach in the swamp? It should've been burned into ashes before it even reached her, no?

Anyway, just rambling some thoughts <3 I would have gone to Harvard if there was a major in Gale...