The Super Seven is the main group of superheroes here in Primacity. They coordinate their activities and work together to bust major crime, but they all work independently too. It's not a strict organization. I'll make a list here to tell you about them briefly.
Pillar - Male. He has super strength and is more resistant to injury than the average human. Far from invincible, though.
Falcon - Male. Flight and super sharp senses. Pillar and Falcon are fraternal twins.
Sure Fire - Male. He's the oldest of the Super Seven. Basically a cowboy crime fighter. He has excellent aim with his pistol, a knife...anything really. But he treats shooting a gun as a last resort. There's some old news footage of him using a lasso. It's sort of campy these days so he rarely has the lasso with him anymore. He doesn't seem to have any superpowers, but there are theories that his aging process was somehow slowed. Watch news footage of him from 20 years ago and you'll see he looks mostly the same as he does today. Perpetually mid-forties.
Jet - Female. She moves really fast. Her costume is all white so when she shows up, all you can see is a white blur shooting down the street.
Agua - Male. He's the newest member of the Super Seven. (He replaced Midnight who retired about six months ago.) He can manipulate water, any water in the area--water vapor in the air, rain, sewer system, fire hydrants.
Fate - Female. She can see the future, the end-game of an event. She's also good with a bow and arrow. Seems to have a thing for old-fashioned weapons. I'm not entirely sure she's human.
Atom - Male. Super smart scientist and resident superhero doctor. He doesn't come out into the field that much.
Then there are casual members of the Super Seven. These are superheroes who live in Primacity but they might not be full-time heroes or their powers might be especially helpful to the Super Seven in specific cases.
Streak - I've already told you a little about him. Male. Telekinesis. Saves people more often than he busts crime.
KaBoom - Male. Explosives expert. The Super Seven call him in when they need to disarm a weapon.
Feedback - Female. Can manipulate sound.
There have been others, but these three have helped the Super Seven on multiple occasions.
I mentioned that Midnight retired. She was a skilled fighter and could take on guys twice her size with her bare hands. She retired because of her age, and I would think her body can only take so much. The stress from her training and damage from fights probably caught up with her.