Moon Dog, or Moon Doggie as he is more common known as, is a light blue Pegasus and is the twin brother of Sun Dog.
| Cutie mark|
Cresant Moon on a cloud
Moon Dog is a light blue Pegasus with yellow hair. He is a very laid back pony. He doesn't like comflict and rather keep everything at a more peaceful loving nature. Moon Dog may come off as being lazy and a bit of a stoner, but he is anything buy lazy. Moon Doggie is loyal towards his long time good friends and extremely friendly to new ponies he meets. He is quiet opened minded.
Moon Doggie's Cutie Mark is a cresent moon sitting on a cloud.
Moon Doggie was born with an older twin sister named Sun Dog, together they grew up in Cloudsdale and attended Flight School. He later left Cloudsdale so not to work in the Weather Factories, and moved to Ponyville to live with his girlfriend. He works at his girlfriend's cafe.
- Moon Dog is named after a character featured in Eureka 7.
- Moondog was a is the name of a blind American composer, musician, poet and inventor of several musical instruments.
- Moon Dog is a is a relatively rare bright circular spot on a lunar halo caused by the refraction of moonlight by hexagonal-plate-shaped ice crystals in the cirrus or cirrostratus clouds.