These are the 8 unlockable characters for the DLC Versus Mode. While the same as Merceneries, they only have slightly different weapon-sets.

Character	How to unlock
Chris(S.T.A.R.S)	Unlock him through the Bonus Features menu at the cost of 13,000 Exchange Points
Chris(Safari)	Unlock him through the Bonus Features menu at the cost of 8,000 Exchange Points
Jill(Battle Suit)	Unlock her through the Bonus Features menu at the cost of 5,000 Exchange Points
Jill(BSAA)	Unlock her through the Bonus Features menu at the cost of 5,000 Exchange Points
Sheva(Clubbin')	Unlock her through the Bonus Features menu at the cost of 6,000 Exchange Points
Sheva(Tribal)	Unlock her through the Bonus Features menu at the cost of 15,000 Exchange Points
Wesker(Midnight)	Unlock him through the Bonus Features menu at the cost of 5,000 Exchange Points
Wesker(S.T.A.R.S)	Unlock him through the Bonus Features menu at the cost of 5,000 Exchange Points