I'm just going to start with three.

Name: Chuck Greene
[img=http://img1.wikia.nocookie.net/__cb20110511170730/deadrising/images/2/2b/Chuck_in_game.jpg]
Weapon/Power: [url=http://deadrising.wikia.com/wiki/Paddlesaw] Paddlesaw [/url] and resourcefulness
World: Dead Rising

Name: Nero
[img=http://img1.wikia.nocookie.net/__cb20120624032942/devilmaycry/images/9/9f/Nero.jpg]
Weapons/Power: [url=http://devilmaycry.wikia.com/wiki/Red_Queen] Red Queen, [/url] [url=http://devilmaycry.wikia.com/wiki/Blue_Rose] Blue Rose, [/url] [url=http://devilmaycry.wikia.com/wiki/Devil_Bringer] Devil Bringer, [/url] [url=http://devilmaycry.wikia.com/wiki/Yamato] and Yamato [/url]
World: Devil May Cry

Name: Leon S. Kennedy
[img=http://img2.wikia.nocookie.net/__cb20120120143442/residentevil/images/a/a9/6730457489_2654a82ea1_b.jpg]
Weapons: [url=http://residentevil.wikia.com/Wing_Shooter] Wing Shooter's [/url] and a survival knife.
World: Resident Evil (Biohazard)