left side
Name: Zero Kiryu
Race: Vampire
Show: Vampire Knight
Weapon: Bloody Rose
Occupation: Gaurdian for Cross Academy

Right side
Name: Setsuna F. Seiai (last name's hard to spell)
Race: Innovator
Show: Gundam 00
Weapon: Gundam 00 Raiser/ Quan-T
Occupation: Gundam Meister for Celestial Being

Where i got the images: searched them on Google.

Program used to make wallpaper: "PaintShop Pro.8"

There's the break-down of two most baddest characters that i could think of that would work as a tag-team for "heroes of earth". hope u like it