Luigi:

The man in green. Mario's younger, neglected brother who rose up from all the bad publicity to claim himself a hero. He's queer, cool, and lactose intolerant. What else do you need? He also suffers from the trauma of Pwnage in the face region.

Protoman:

Everyone's second favorite robot. Always playing second fiddle to Megaman, he doesn't even get his own game like Tails' Sky Patrol, Luigi's Mansion, or Chocobo's Dungeon. He is infinitely cooler than Megaman, which is what most fanboys will tell you. Probably. Maybe. He has an awesome theme song, okay?

Tails:

The animal engineer! His nerdiness may overshadow his bravery, but that doesn't stop him from accepting a reputation as a complete and total suckwad. Side kick to Sonic, Tails doesn't have many abilities. I mean, even I'm a nerd, who cares about Tails? I wonder if he plays D&D...

Chocobo:

SquareSoft bird in the feather! I mean, flesh! He's cute, he says Bwuk (Shouldn't that be kweh?), and he has an obese uncle. What more could you want from this awesome chick? He's far evolved from that two dollar chicken sammich!