The Seven Souls

Undertale's seven fallen humans.
relevant links
(Description is a work in progress, expect incomplete info and such for a bit)
(Warning: Things are about to get very dark. Don't click the spoilers below if you're fainthearted!)

Spoiler: Cyan

''Ball' is 'Small'. You waited, still, for this opportunity... then dethroned 'Ball' with a sharp attack.'
Name: Brooke
Age: 9
Gender: Female
Equipment: Toy Knife, Faded Ribbon
Game mechanic: Avoid damage by not moving
Boss mechanic: Spinning blades
Bio: An incredibly shy girl dressed in baggy hand-me-downs from her older siblings. Don't be too intimidated by her knife, it's just a toy - the blade is blunt plastic. Her hair is tied back by a small red ribbon. She's no fighter, but is proficient at hiding.

Spoiler: Cause of Death

After falling into the Ruins, she was found and cared for by Toriel for a long while, but the desire to return home coaxed her out into the Underground. She sustained serious wounds from the smaller monsters near Snowdin, but managed to hide in a rocky outcropping for a few days before succumbing to hypothermia.

Spoiler: Orange

Name: Anders
Age: 12
Gender: Male
Equipment: Tough Glove, Manly Bandanna
Game mechanic: Avoid damage by moving
Boss mechanic: Twirling gloves
Bio: A brash young boy with aspirations of being a pro boxer. His other glove was lost a long time ago. He had originally climbed Mt. Ebott to show off to his friends, needless to say it didn't work out too well.

Spoiler: Blue

Name: Constance
Age: 13
Gender: Female
Equipment: Ballet Shoes, Old Tutu
Game mechanic: Jump over obstacles
Boss mechanic: Ballet shoes
Bio: A good-natured and curious girl with an undying love of dance, especially ballet.

Spoiler: Purple

Name: Sanjiv
Age: 15
Gender: Male
Equipment: Torn Journal, Foggy Glasses
Game mechanic: Move along lines
Boss mechanic: Books and words
Bio: A left-brained and somewhat uptight young man. He's quite intelligent, but his bad memory forces him to keep a journal of everything he learns. He was planning on doing a school project based on research on Mt. Ebott... It wasn't his brightest moment.

Spoiler: Green

Name: Thibault
Age: 14
Gender: Male
Equipment: Burnt Pan, Stained Apron
Game mechanic: Stand still and shield; green food items heal you
Boss mechanic: Cooking projectiles
Bio: A promising young chef with a knack for figuring out people's tastes. He was searching for ingredients for his family's restaurant; the area he was looking in just so happened to be right next to Mt. Ebott. Oops.

Spoiler: Yellow

Name: Levi
Age: 11
Gender: Male
Equipment: Empty Gun, Cowboy Hat
Game mechanic: Flip soul upside-down to shoot
Boss mechanic: Firing gun
Bio: A tough, no-nonsense kid with a black-and-white morality. Carries his father's gun with him at all times, even though it's been empty since as long as he can remember.

Spoiler: Red

'Try as you might, you continue to be yourself.'
Name: Frisk
Age: 10
Gender: Yes
Equipment: Stick, Bandage
Game mechanic: Free movement
Bio: right here!