You should probably know what MGS means. One of the best games i ever known….MGS….. i hope i can play MGS4…but unfortunately i don’t have any PS3 ….anyway i will give you some characters

SNAKE – you probably know this guy. He saved the world for many times. Although only in his 40s his aging rapidly for unknown reason.

OTACON – He is still in the game. genius hacker and noted authority in robotics . he pilots MK.II (his robot) and follows snake around.

oh heres a vid – MGS4

Sunny – a young girl captive by the patriots. She was rescued by raiden and entrusted to otacon and snake

Roy Campbell – know him!…yeah his there…for commander of foxhound

Drebin & little gray – a black market weapons dealer and he is also a gun launderer. And you can’t see him without his partner little gray a monkey

Meryl – a female soldier who idolized and fought with snake

LIQUID – He’s Backkkk!. He is another clone of big boss and he is planning to launch an insurrection

Raiden – a cyborg soldier in a fully armored exoskeleton. He is the one who rescue sunny.

Here are some characters in the game:
johnny,naomi hunter,big mama,ed,jonathan,vamp,mei ling,rosemary,laughing octopus,raging raven,crying wolf & screaming mantis

anyway heres a vid