A few ideas...
For the martial artist, a thinker type. He was never actually trained in martial arts, has no specific knowledge of them, but he's an incredibly smart predictor and can counter anything coming in because he saw it about to happen. It would focus on defense, with a NND strikes and find weakness. "It was simply the most logical place to strike him."
Energy blaster--here's a conundrum. Cyclops is often seen as the prototypical energy blaster, but powers wise i think he's definitely atypical. I would love to see more energy blasters whose only power is an energy blast. No flight, no force fields, no energy manipulation, just the blast.
For gadgeteer, I've been tinkering with a Junkyard Wars inspired hero. Junkyard has no fine skills, his gadgets are huge, clunky, and a maximum of three charges, usually with some activation roll. But he can create anything in ten hours.
For the brick, what about someone who feels the pain? S/he takes no actual damage, but getting hit still hurts like hell.
For the atypical mentalist, a con-man.
I might come up with more given sleep and Coca Cola.
