Just a bunch of the characters that made their mark on Sony's magnificent handheld!
Gabriel Logan (Syphon Filter Logan's Shadow, Syphon Filter Dark Mirror)
Kratos (God of War Chains of Olympus, God of War Ghost of Sparta, Soul Calibur Broken Destiny)
Zack Fair (Final Fantasy Crisis Core, Kingdom Hearts: Birth By Sleep, Final Fantasy Dissidia)
Rei (Breath of Fire)
Ratchet (Ratchet & Clank Size Matters)
Clank (Secret Agent Clank, Ratchet & Clank: Size Matters)
Daxter (Daxter, Jak & Daxter: The Lost Frontier)
Jak (Jak & Daxter: The Lost Frontier)
Toni Cipriani (GTA Liberty City Stories)
Vic Vance (GTA Vice City Stories)
Huang Lee (GTA Chinatown Wars)
Altair (Assassin's Creed: Bloodlines)
Solid Snake (Metal Gear Acid, Metal Gear Acid 2)
Naked Snake (Metal Gear Solid Portable Ops, Metal Gear Solid Portable Ops +)
Big Boss (Snake) (Metal Gear Solid Peace Walker)
Jeanne (Jeanne D'Arc)
Sackboy (Littlebigplanet)
James Grayson (Resistance Retribution)
Travis Grady (Silent Hill Origins)
Harry Mason (Silent Hill Shattered Memories)
Fred (Dead Head Fred)
Dogi (YS 7, YS Oath in Felghana)
Adol (YS 1+2 Chronicles, YS The Oath in Felghana, YS 7, YS The Ark of Napishtim)
Lara Croft (Tomb Raider Legend, Tomb Raider Anniversary)
Crash Bandicoot (Crash Tag Team Racing, Crash of the Titans, Crash Mind Over Mutant)
Sonic The Hedgehog (Sonic Rivals 1, Sonic Rivals 2)
Indiana Jones (Indiana Jones & the Staff of Kings, Lego Indiana Jones the Original Adventures, Lego Indana Jones 2)
Aragorn (Lord of the Rings Tactics, LOTR Aragorn's Quest)
Will add more soon :)
I ignored most of the Final Fantasy and Disgaea games because there's too fucking many of them!