Flash Sentry (Friendship is Magic)

Flash Sentry is a  who works for the Royal Guards under the Day Guard branch.

History
Flash first met when she had just left the, after she had just went on a date with his.

Equestria Girls
Flash was a human male and ex-boyfriend of Sunset Shimmer and close friend to the Equestria Girls.

IDW comics
Flash was a member of the 12th Precinct and had a good relationship with his superior. Flash went on a mission with the rest of the 12th Precinct to the Everfree Forest, but was scared by an opossum. After his precinct met with Princess Luna, his captain refused to let it go and teased Flash about the incident.