Dr Whooves

Name: Dr Whooves
Creator: Unknown
Cutie Mark: Hourglass

It's more like a big ball of wibbly wobbly... time-y wimey... stuff. 

Derpy Hooves

Name: Derpy Hooves
Creator: Unknown
Cutie Mark: So... Many.... Bubbles....

Derpy is the Fandom pony. She has lopsided eyes. Derpy is best pony.

Dizzy Twister

Name: Dizzy Twister
Creator: Unknown
Cutie Mark: Three tornados

Background pony

Princess Celestia

Name: Princess Celestia
Creator: Unknown
Cutie Mark: Many spoked sun

She'll send you to the MOOOOOON

Princess Luna

Name: Princess Luna
Creator: Unknown
Cutie Mark: Moon on a dark blue smudge

Baby Luna is cute Luna

Canon Luna

Name: Princess Luna (Canon)
Creator: Unknown
Cutie Mark: Moon on dark blue smudge

Princess Luna, co-ruler of Equestria

Fluttershy

Name: Fluttershy
Creator: BambooDog
Cutie Mark: Three pink butterflies

Takes care of all the animals in ponyville, very shy, part of the mane 6