Sunny is a curious, adventurous, and idealistic pony determined to make the world a better place. She always stands up for what she believes and loves roller skating into new adventures. Her dream is to bring all magic and harmony back to Equestria, and make sure it stays.
Sunny is an apricot orange Earth pony with maroon hooves and off-white orange socks on all hooves. Her mane is magenta-and-purple and is tied back in a braid with aquamarine elastics. Her tail has no braiding and is of average length. She has emerald green eyes and dark magenta eyebrows. As an alicorn, her wings and horn are both golden yellow and appear to be made of magic, and she now has rainbow hair streaks.
Her cutie mark is of a pink star with a blue trail. There are two smaller stars on the anterior side of the large one.
Sunny's alicorn transformation was similar to that of Twilight Sparkle's, except hers was shown onscreen.
In My Little Pony: A New Generation during the song "Danger, Danger", a family of Earth ponies is eating breakfast, while the father reads the "Mare Times" newspaper. There is the headline "Did Sunny Starshine Help Unicorn Escape?"
Sunny Starscout was designed by artist Lea Dabssi.