Wild Dog- This is the first one we encounter. He shows up in the first fight, goes to defuse the bomb, which is already being defused by Felicity. Oliver then does the proper recruitment technique of shooting him in the leg.
In the comics, Wild Dog was created by Max Allan Collins, Ted Beatty, and Dick Giordano, for a four issue miniseries, and then went into a story in the weekly incarnation of Action Comics between 1987-1989. The original was an ex-marine by the name of Jack Wheeler, who operated in the Quad Cities, appropriate for a Max Allan Collins hero.(Yes, I'm not entirely happy the made the TV character "diverse"). Another point against his diversification is the hockey theme of the character: he wears a hockey mask and jersey, and hockey is a VERY white sport. That said, the guy appears to be a decent actor, and I'll give him a chance.
Onto Curtis Holt. There's no Curtis Holt in the comics, but there is a Michael Holt. Michael Holt is one of the smartest people in the DCU, as well as a gold medalist at decatholon. He invented the T-Spheres, which we've seen a version of, and possesses 14 PH.D.s. The T-mask should be coming, the Fair Play jacket already exists. Mr. Holt is the second Mr. Terrific; the first is part of the original JSA, named Terry Sloane.
Now to Ragman. The character's name is the same as the comics, though the origin different. Rory Regan in the comics has been originally Irish, and then retconned to Jewish(don't know why). In the comics, Rory is saved by a costume bought for him by his father to wear for Halloween, when his father's shop is held up and his father and friends killed. Currently, the costume is made of rags containing the souls of villains killed by the suit, and powered by them as well. I believe the show mad mention of ancient Egypt, so it's going to be a different version of the suit.
Now, where will this lead us, as far as teams? Well, this might get us closer to a Justice League, but I don't know. Personally, I want to see a version of the Question. Give us an Earth 2 show, with John Wesley Shipp as the Flash. Oh, wait. I mean again. With more characters, like Citizen Cold, perhaps the Jester. Just some thoughts. And please, stop playing Social Justice. Because:
When you play Social Justice, the world loses.