Princess Celestia

Princess Celestia is the co-ruler of Equestria along with her younger sister Princess Luna. They're both responsible for raising the sun, moon and stars. She is the mentor to Twilight Sparkle and addresses as "My faithful student". In the Jaden's Adventures series and the Jeffrey & Friends' Adventures series, Princess Celestia acts as a mentor to Jaden and Jeffrey, knowing that they are very kind, brave, loyal and strong.

Trivia

 * Princess Celestia will guest star in Jeffrey & Friends meet Bambi.
 * Princess Celestia will guest star in Jeffrey & Friends' Storm Adventures of Don't Eat the Pictures. She'll help Osiris put Prince Sahu though a test.