Albert Wesker - Wesker, commander of Alpha Team and one of the lead researchers on the T-virus alongside William Birkin. He makes his third appearance in a Resident Evil game. In Resident Evil Zero some light should be shed on the details of how he lured the S.T.A.R.S. members into his "experiment".
	Dr. William Birkin - One of the lead researchers of the T-Virus for the Umbrella Corporation along with Wesker. He is also the sole creator of the G-virus. William Birkin makes his second  appearance in a Resident Evil installment. He will do anything to protect his work, including murder.
	Dr. James Marcus - One of the lead researchers at Umbrella and one of William Birkin's mentors. His research led to the creation of the Progenitor virus, which is what infects Leon in Resident Evil 4. Marcus was assassinated by Umbrella and years later comes back to life due to the effects of his own research.
	Dr. James Marcus (after infection) - One of the lead researchers at Umbrella now with super human strengths caused by his own research. He now seeks out revenge on Umbrella Inc. and wont let anyone stand in his way!
	Enrico Marini - Bravo Team's leader, and Wesker's second in command for the S.T.A.R.S. unit. Enrico feels threatened by the arrival of the Alpha Team, thinking that Chris or Barry may end up replacing him as #1 to Wesker. Nonetheless.
	Forest Speyer - In addition to his duties as Bravo's vehicle specialist. He is a consummate professional, and his work earns him a good job and good teammates.
	Kenneth J. Sullivan - A quiet but very talented field scouting officer, and an expert in chemistry. He wonders why his chemical experience would be necessary in Raccoon City, but quickly discounts his hesitancy since Wesker himself sought him for enlisting in S.T.A.R.S.
	Richard Aiken - A very important member of S.T.A.R.S. serving as Bravo's communications expert. . Richard actually has to pull double duty as radioman for both units since Alpha Team really has no dedicated communications expert.
	Edward Dewey - Helicopter pilot for Bravo Team. He's a bit of a heavyweight on the action side of things. He gets killed later on in the game and returns as a zombie.

 

Weapons

	Knife - This is the standard weapon in every Resident Evil game. Again the survival knife makes an appearance. Tere are no item boxes you can put it in. It does come in handy when you run out of ammunition.
	Molotov Cocktail - The only true novelty thus far, as far as weapons are concerned. Throw this at your enemies and watch them burn!
	Billy's Handgun - The standard Handgun used by Billy. Resembles the Custom S.T.A.R.S Handgun Rebecca uses in the game.Usually best used against zombies and the Cerberus.
	S.T.A.R.S. Custom HandgunThe standard S.T.A.R.S. handugn, just as it is found in most other RE games. Comes in good use against the standard enemies like zombies and the Cerberus. Will not help you much against the bosses such as the Tyrant!
	Magnum - The powerful magnum gun. Probably the most useful gun in the game. Looks to be like a .45 or a .50 caliber.
	Hunting Rifle - Very similar to the shotgun.  Better used for bigger enemies such as Hunters and Eliminators.
	Shotgun -  The shotgun makes its return! Particularly useful when surrounded by several enemies at a time.
	Grenade Launcher - A very powerfull weapon in Resident Evil, uses grenade rounds like most other Resident Evil's. Use it against bosses and such like.
	Rocket Launcher - The most powerful weapon in any Resident Evil Game! Usually kills almost instantly, use in boss battles at the end of the game.