Sousuke Sagara and the rest of the FMP! crew. Anytime you need comedic mayhem or someone who is a "specilist" Also, with all those Whispered running around....

While we;ve seen the Batman, why not the Shodow? (The actual 'what evil lurks in the heart of men?' guy). Or Doc Savage and his crew?

Sorry, every other crossover I can think of right now involves magic...

Craig