Characters Off the Table:

Batman - Bruce Wayne
Superman - Clark Kent/Kal-El
Captain America - Steven Rogers
Wonder Woman - Diana Prince
Iron Man - Tony Stark
Thor - Thor Odinson
Hawkeye - Clint Barton
Aquaman - Arthur Curry/Orin
Spider-Man - Peter Parker
Cyclops - Scott Summers 
Iceman - Bobby Drake
Beast - Hank McCoy
Professor X - Charles Xavier
Marvel Girl - Jean Grey 
Angel - Warren Worthington III
Green Arrow - Oliver Queen
Black Canary - Dinah Drake
Hulk - Bruce Banner
The Flash - Barry Allen
[s]Daredevil - Matt Murdock[/s]
Green Lantern - Hal Jordan
Ant-Man - Hank Pym
Wasp - Janet Van Dyne
Namor - Namor the Submariner
Reed Richards - Mr. Fantastic
Sue Storm - Invisible Woman
Johnny Storm - Human Torch
Ben Grimm - The Thing
Stephen Strange - Dr. Strange
Kent Nelson - Dr. Fate
T'Challa - Black Panther

All other 'parent' characters will be evaluated on a case-by-case basis.