Rarity

Rarity is a fashion-obsessed unicorn who hates dirt. She has a pet cat called Obalescence. She designs dresses in Ponyville and her boutique is called the Carousel Boutique. She has a sister called Sweetiebell who is a member of the cutie mark crusaders. Her cutie mark is three diamonds. She is the element of generosity in the elements of harmony.  Her greatest power is that she can find gems in the earth without any problem.

Rainbow Dash

Rainbow Dash is a pegasus and she lives in Cloudsdale. She is a fan of the Wonderbolts and she wants to be the best flyer in the whole of Equestria. She has a pet tortoise called Tank. She is the element of loyalty in the elements of harmony. Her cutie mark is a clous with a thunder-shaped rainbow protruding from it. Her famous flying move is the 'Sonic Rainboom'.

AppleJack

Applejack is an earth pony and she lives at Sweet Apple Acres. Her Grandma is Granny Smith and her brother is Old Mackintosh. Her sister is Apple Bloom who is a part of the cutie mark crusaders. She is very athletic and she has a HUGE family. Her pet is a dog called Winnowa. Her cutie mark is three apples. She is the element of honesty in the elements of harmony. 

Pinkie Pie

Pinkie Pie was a miserable little pony before she got her cutie mark. Her cutie mark is three balloons. She is the element of laughter. Her pet is a toothless alligator/crocodile called Gummy. She works for Mr. and Mrs. Cake at the Sugarcube Corner. She has a weird superstition called the Pinkie Sign. It's always been right. For example, Tail twitching means something is going to fall. She takes promises very seriously. She is the element of laughter in the elements of harmony.

Twilight Sparkle

Twilight Sparkle is a unicorn from Canterlot. Her brother is Shining Armour and her sister-in-law is Princess Cadence who was also her 'baby-sitter'. She is a student of Princess Celestia. She came to Ponyville to check the decorations, food and songbirds. But then she made some friends and decided to stay there. She is the element of magic in the elements of harmony. She has a pet owl called Owlwicious. Spike, a baby dragon helps her in the library.