Fargo's Mod/Mutant

Mutant is an NPC vendor that will spawn once the following conditions are met:
 * There is an empty house.
 * Any boss has been defeated.

When threatened by enemies, it will defend itself depending on the world's progress:
 * If the world is in Pre-Hardmode, it will throw an eyeball.
 * If the world is in Hardmode, it will throw a mechanical eyeball.
 * If Moon Lord has been defeated, it will throw a phantasmal eyeball.
 * If the player has, it will throw , which leaves behind a trail of homing Phantasmal Spheres.

Names
Mutant can have the following names:
 * Flacken
 * Dorf
 * Bingo
 * Hans
 * Fargo
 * Grim
 * Furgo
 * Fargu
 * Terrance
 * Catty N. Pem
 * Tom
 * Weirdus
 * Polly

Quotes

 * "Savagery, barbarism, bloodthirst, that's what I like seeing in people."
 * "What's this about an update? Sounds rare."
 * "The stronger you get, the more stuff I sell. Makes sense, right?"
 * "Do you know what an Ee-arth is?"
 * "There's something all of you have that I don't... Death perception, I think it's called?"
 * "Why do so many creatures carry around a weird looking blue doll? The world may never know."
 * "It would be pretty cool if I could sell a summon for myself..."
 * "It's clear that I'm helping you out, but uh... what's in this for me? A house you say? I eat zombies for breakfast."
 * "The only way to get stronger is to keep buying from me and in bulk too!"
 * "I've told you 56 times already, I'm busy... Oh wait you want to buy something, I suppose I have time."
 * "You have fewer friends than I do eyes."
 * "Don't bother with anyone else, all you'll ever need is right here."
 * "Good thing I don't have a bed, I'd probably never leave it."
 * "You're lucky I'm on your side."
 * "What's a Terry?"
 * "Thanks for the house, I guess."
 * "Where is this O-hi-o I keep hearing about."
 * "Why yes I would love a ham and swiss sandwich."
 * "Can I jump? No, I don't have something called a 'spacebar'."
 * "Should I start wearing clothes? ...Nah."
 * "Everything shall bow before me! ...after you make this purchase."
 * "It's not like I can actually use all the gold you're spending."
 * "The ocean is a dangerous place, I wonder where Diver is?"
 * "Violence for violence is the law of the beast."
 * "Have you seen the ech cat?"
 * "Those guys really need to get more creative. All their first bosses are desert themed!"
 * "If you need me I'll be slacking off somewhere."
 * "You say you want to know how a Mutant and Abominatonn are brothers? You're better off not knowing."
 * "What do you mean who is Fargo!"
 * "Cthulhu's got nothing on me!"
 * "I've heard of a 'Soul of Souls' that only exists in 2015."
 * "Boy don't I look fabulous today."
 * "I think that all modern art looks great, especially the bloody stuff."
 * "I don't understand music nowadays, I prefer some smooth jazz... or the dying screams of monsters."
 * "Dogs are cool and all, but cats don't try to bite my brain."
 * "Impending doom approaches. ...If you don't buy anything of course."
 * "I'm all you need for a calamity."
 * "Beware the green dragon... What's that face mean?"
 * "Got your nose, I needed one to replace mine."
 * "I've heard of a '3rd dimension', I wonder what that looks like
 * "Why are you looking at me like that, all I did was eat an apple."
 * "I can't even spell 'apotheosis', do you expect me to know what it is?"
 * "Adding EX after everything makes it way more difficult.
 * "How many guides does it take to change a lightbulb? ... I don't know, how about you ask him."

When Nurse is present:
 * "Whenever we're alone, [Name of Nurse] keeps throwing syringes at me, no matter how many times I tell her to stop!"

When Dye Trader is present:
 * "[Name of Dye Trader] wants to see what I would look like in blue... I don't know how to feel."

When Witch Doctor is present:
 * "Please go tell [Name of Witch Doctor] to drop the 'mystical' shtick, I mean, come on! I get it, you make tainted water or something."

When Party Girl is present:
 * "Man, [Name of Party Girl]'s confetti keeps getting stuck to my wings" [sic]

When Guide is present:
 * "Any idea why [Name of Guide] is always cowering in fear when I get near him?"

When Tavernkeep is present:
 * "[Name of Tavernkeep] keeps suggesting I drink some beer, something tells me he wouldn't like me when I'm drunk though."

When Demolitionist is present:
 * "I'm surprised [Name of Demolitionist] hasn't blown a hole in the floor yet, on second thought that sounds fun."

When Dryad is present:
 * "Why does [Name of Dryad]'s outfit make my wings flutter?"

When is present:
 * "It's okay [Name of Mutant], just don't look straight into [Name of LumberJack]'s eyes. He can't scare you that way..."

When Stylist is present:
 * "[Name of Stylist] once gave me a wig... I look hideous with long hair."

When Truffle is present:
 * "That mutated mushroom seems like my type of fella."

When Tax Collector is present:
 * "[Name of Tax Collector] keeps asking me for money, but he won't accept my spawners!"

When Cyborg, Truffle, and Witch Doctor are present:
 * "If any of us could play instruments, I'd totally start a band with [Name of Witch Doctor], [Name of Truffle], and [Name of Cyborg]."

When Fargo's Soul mod is enabled and Moon Lord has been defeated:
 * "Now that you've defeated the big guy, I'd say it's time to start collecting those materials!"

When Fargo's Soul mod is not enabled:
 * "What's that? You want to fight me? ...you're not worthy you rat."

When Calamity is enabled:
 * "Why would you do this."

When Thorium is enabled:
 * "A great choice, shame about that first desert boss thing though."

When Calamity and Thorium are enabled:
 * "I feel a great imbalance in this world."

If has been defeated:
 * "What's that? You want to fight me? ...maybe if I had a reason."

If has been defeated:
 * "What's that? You want to fight me? ...sure, I guess."

During a Blood Moon:
 * "Lovely night, isn't it?"
 * "I hope the constant arguing I'm hearing isn't my fault."

During a Pumpkin Moon:
 * "A bit spooky tonight, isn't it."

During a Frost Moon:
 * "I'd ask for a coat, but I don't think you have any my size."

During a Slime Rain:
 * "Weather seems odd today, wouldn't you agree?"

During the Night:
 * "I'd follow and help, but I'd much rather sit around right now."

During a Party:
 * "I don't know what everyone's so happy about, but as long as nobody mistakes me for a Pigronata, I'm happy too."

During a Party when Party Girl is present:
 * "[Name of Party Girl] is the one who invited me, I don't understand why though."

Trivia

 * The names "Fargo" and "Wilta" are a reference to the mod creator, Fargowilta.
 * The names "Flacken" and "Dorf" are a reference to Flacken Dorf, a character from a story written by Fargowilta.
 * "Polly" is a name commonly used for parrots, tracing back to the Ben Jonson's comedy Volpone.
 * The quote about impending doom approaching is a reference to the Moon Lord, who's message when summoned says 'Impending doom approaches'.
 * The quote about being all that the Player needs for a calamity may be a reference to the Calamity Mod.
 * The quote about "Apotheosis" is a reference to the weapon of the same name from the Calamity mod, which is dedicated to one of the mod's lead developers.
 * The quote about desert themed bosses is a reference to many other mods, and how their first bosses are desert related.
 * The Blood Moon quote about constant arguing references the effect the event has on the Vanilla female NPCs, who become greatly irritated.
 * The Mutant may be attracted to the Dryad, as he states her outfit makes his wings flutter, a term which may indicate arousal.