Flash Magnus is a hero in My Little Pony: Friendship is Magic. He is played by Giles Panton.
He is a member of Pillars of Old Equestria, the faster of his company di lui, and a pony hipper strong.
He is also the idol of Rainbow Dash, of whom she tells her story that he was a cadet of the Royal Cloudsdale Legion during the founding of The Wonderbolts who also saved his companions from a pack of dragons during their retreat as a diversion to distract the dragons.
Then he was imprisoned along with his fellow Pillars of Old Equestria in limbo with The Pony of Shadows.