A

B

Black, Sirius

• If you want to know what a man's like, take a good look at how he treats his inferiors, not his equals.  ~"Padfoot Returns," Goblet of Fire
  

C

D

Dumbledore, Albus

• "Welcome! Welcome to the new year at Hogwarts! Before we begin our banquet, I would like to say a few words. And here they are: Nitwit! Blubber! Oddment! Tweak! Thank you!" ~ "The Sorting Hat", Sorcerer's Stone
• After all, to the well-organized mind, death is but the next great adventure. ~ Sorcerer's Stone
• After all, to the well-organized mind, death is but the next great adventure.  ~ "The Man with Two Faces," Sorcerer's Stone
• Happiness can be found, even in the darkest of times, if one only remembers to turn on the light.  ~ Prisoner of Azkaban
• I sometimes find, and I am sure you know the feeling, that I simply have too many thoughts and memories crammed into my mind.... At these times... I use the Pensieve.  One simply siphons the excess thoughts from one's mind, pours them into the basin, and examines them at one's leisure.  ~ "The Pensieve," Goblet of Fire
• Numbing the pain for a while will make it worse when you finally feel it.  ~ "The Parting of the Ways," Goblet of Fire
• You place too much importance... on the so-called purity of blood!  You fail to recognize that it matters not what someone is born, but what they grow to be!  ~ "The Parting of the Ways," Goblet of Fire
• My own brother, Aberforth, was prosecuted for practicing inappropriate charms on a goat. ~Goblet of Fire
• It is the unknown we fear when we look upon death and darkness, nothing more.  ~"The Cave," Half-Blood Prince
  

Dursely, Vernon

• I AM NOT PAYING FOR SOME CRACKPOT OLD FOOL TO TEACH HIM MAGIC TRICKS! ~Sorcerer's Stone

E

F

G

Granger, Hermoine

• Just because it's taken you three years to notice, Ron, doesn't mean no one else has spotted I'm a girl! ~Goblet of Fire
• Just because you've got the emotional range of a teaspoon doesn't mean we all have. ~Order of the Phoenix

H

Hagrid, Rubeus

• Meant ter turn him into a pig, but I suppose he was so much like a pig anyway there wasn't much left ter do. ~Sorcerer's Stone
• Never try an' get a staight answer out of a centaur. Ruddy stargazers. Not interested in anythin' closer'n the moon. ~Sorcerer's Stone

I

J

K

L

Lockhart, Gilderoy

• Am I a professor? Goodness. I expect I was hopeless, was I? ~Chamber of Secrets

Lovegood, Luna

M

Malfoy, Draco

• You're joking Weasley? You're not telling me someone's aked THAT to the ball? Not the long-molared mudblood? ~Goblet of Fire

Malfoy, Lucious

Moaning Myrtle

• Oh, well ... I'd just been thinking ... if you had died, you'd have been welcome to share my toilet. ~Chamber of Secrets

Moody, Alastor "Mad-Eye"

• I say there are spots that don't come off.... Spots that never come off, d'you know what I mean?  ~ "The Egg and The Eye," Goblet of Fire
• Nothing like a nighttime stroll to give you ideas.  ~"The Egg and The Eye," Goblet of Fire
• 'Don't put your wand there, boy!' roared Moody. 'What if it ignited? Better wizards than you have lost buttocks, you know!' ~Goblet of Fire
  

N

O

P

Peeves

• Oh, Potter, you rotter, oh, what have you done, You're killing off students, you think it's good fun! ~ Chamber of Secrets

Pettigrew, Peter

Potter, Harry

• Proud? Are you crazy? All those times I could've died, and I didn't manage it? They'll be furious.... ~Chamber of Secrets
• This is night, Diddykins. That's what we call it when it goes all dark like this. ~Order of the Phoenix

Q

Quirrell

• There is no good and evil, there is only power, and those to weak to seek it. ~Sorcerer's Stone

R

S

Snape, Severus

• POTTER! Your head is not allowed in Hogsmeade! ~Prisioner of Azkaban

T

Thomas, Dean

U

V

Voldermort

W

Weasley, Arthur

• Never trust anything that can think for itself if you can't see where it keeps its brain.  ~ "Dobby's Reward," Chamber of Secrets
  

Weasley, Bill

Weasley, Charlie

Weasley, Ginny

Weasley, Fred and/or George

• I solemnly swear that I am up to no good. ~Prisoner of Azkaban
• I'm not Fred, he's Fred, Honestly woman, and you call yourself our Mother.

Weasley, Molly

Weasley, Percy

Weasley, Ron

• Why have you outlined all Lockhart's lessons in little hearts? Chamber of Secrets
  
• Can you believe our luck? Of all the trees we could've hit, we had to get one that hits back. ~"The Whomping Willow", Chamber of Secrets
• Follow the spiders? Why couldn't it be follow the butterflies? Chamber of Secrets
  

X

Y

Z