To be fair, Flash DOES have several character traits that make for an interesting personality if you read between the lines, heck I could bring up some good info right now:Flash has a sense of justice as he went to clear Twilight’s name when Sunset framed her. And considering that he used to be Sunset’s boyfriend, that means he memorized and knows exactly how she operates.He also dumped Sunset despite everyone in the school being afraid of her so he clearly wasn’t afraid of a bully or at the very least knows how to spot a bad influence.He’s a gentleman, a bit of a music nerd and a clutz.Presumably taught Sunset how to play guitar, considering he’s the only one she was close to before her “bully” phase.He has a few character flaws like him not being able to cook (if Friendship Games is any indication), having a bit of an ego when it comes to his music (Banner Day is a good example of that) to the point of naming the band after himself (Flash Drive)… not unlike Rainbow Dash.He’s apparently good friends with Sandlewood, Micro Chips, Lyra and Bonbon.Was considered smart/talented/athletic enough to be picked for the Friendship Games.And here’s an interesting thought: If he’s a Royal Guard in the pony world, that could be carried over to his human counterpart in the form of him wanting to be a police officer.Plus there has been a few speculations on him having a younger brother that’s been seen in a few episodes:It may not be much, but we’ve done a lot more with much less. Granted, those last part are speculation at best. But you get what I’m saying, these are several facts about his character that can be used to make him interesting, all simply because I explored ALL possibilities for his character, not just the ones I WANTED to.