I'm hoping that it was just was a shot of Carnage himself & neither a Spider-Carnage or Zombie Spidey. Wouldn't consider either a hero anyway seeing as both eat people...
There's still Spider-Girl or the new Spider-Man that appears in her comic briefly. Only other ones I can think of that people would have actually heard of are Ultimate, the Unlimited cartoon, or Spider-Ham. There's the tokusatsu show in the 70's where he had a giant robot or manga but...naaah...