Second Tier Players (Marvel)

I was wondering which comic characters would make for good video games or films (if none so far), and so created a list of those with 1000 appearances, but then I started wondering where Marvel would head once those have done their time, which lead me to the "second tier" characters--those having <500 (as of October 2010)... 
NOTE: I've left out "supporting cast" and villains.

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