Tornado Bolt

Tornado Bolt is the placeholder name of a female Pegasus pony filly with a light grey coat, purple mane, tail and light green irises. She appears with tornado and horseshoe cutie marks in Call of the Cutie and with a light bulb cutie mark in Twilight Time, but without any cutie mark at all in other episodes. She shares her design with Princess Erroria and Cotton Cloudy.

Depiction in the series
Tornado Bolt's first appearance is in the episode Dragonshy at Ponyville Park as an Earth pony with no cutie mark. Tornado Bolt also appears in Call of the Cutie at Diamond Tiara's cute-ceañera with a tornado cutie mark and once as an Earth pony with a horseshoe cutie mark. Later she is seen in Rainbow Dash's flashback in The Cutie Mark Chronicles. Tornado Bolt is also shown in Twilight's vision in Lesson Zero. She watches Apple Bloom perform in The Cutie Pox, and is seen in a crowd in The Mysterious Mare Do Well. She also appears during the Smile Song in A Friend in Deed, and comes to Snips and Snails for autographs in Ponyville Confidential. In A Canterlot Wedding - Part 2, she is cornered into an alley by Changelings, and is later seen in a crowd. Later in Magical Mystery Cure she is seen in the background during Morning in Ponyville song, though without her cutie mark and wings.

She appears in Flight to the Finish, Pinkie Pride, Simple Ways, Filli Vanilli, Twilight Time, It Ain't Easy Being Breezies, and Leap of Faith.

Appearances
Times are approximate and taken from videos with no prolonged transition for commercial breaks.