3900. Cheerilee

Cheerilee is a schoolteacher in Ponyville and a supporting character on the show.

Cheerilee shares her design and name with a Generation 3 earth pony. She is a unicorn pony in My Little Pony Crystal Princess: The Runaway Rainbow, and her design was combined with Cherry Blossom to create her Core 7 incarnation, which developed into her current appearance. In the Core 7 serials, she is the older sister of Scootaloo and her main personality trait is intelligence.

Cheerilee's first appearance in the series is as a background pony in Boast Busters. She appears in the background of several more episodes, including Winter Wrap Up, Green Isn't Your Color, and The Cutie Mark Chronicles.
Photos of Cheerilee from her lesson on cutie marks
Her first significant role is in Call of the Cutie, in which she teaches her students about cutie marks and explains their purpose. Even though she has a speaking part, her name is not stated on-screen. She shows the students photos of herself as a baby and as a "teenager", with no cutie mark. She compassionately tells her class that her cutie mark symbolizes her care for each of her students, and her desire to help them learn and grow. Diamond Tiara and Silver Spoon interrupt class by passing a note to Apple Bloom, and Cheerilee asks Apple Bloom to show the note to the class; the note is blank, and Diamond Tiara remarks that so is Apple Bloom's flank. The scene fades to black with the students laughing at Apple Bloom.