Aya Brea	One of the few survivors of the Eve incident in New York, and heroine of Parasite Eve 2, Aya is now a monster hunting agent in service to the FBI's special Mitochondrion Investigation and Supression Team [MIST].
Pierce D. Carradine	Although a young and impetuous agent, Pierce is perhaps one of the most important perticipants in the fight against the NMC threat. In charge of MIST training and communication, he is the source for information concerning NMC's and unusual disturbances. Pierce is a valuable agent in the field. However, due to his overzealous approach to his profession, he can sometimes find himself up to his neck in trouble.
Kyle Madigan	A smart and tough bounty hunter who likes to live life on the edge. Aside from hunting, he is skilled in many types of weapons. Formerly a memer of the special forces, he became a bounty hunter because of the money and the thrill of the hunt. [In the game, he claims to be a Private Investigator (P.I.) for the LAPD. This guy puzzles me.]
Jodie Bouquet	Jodie is an expert in weapons and ammunition. As one of the members of MIST, she'll offer Aya weapons, armor and items for her to purchase at the headquarters. [She seems like a socialite, so is quite talkative.]
Gary Douglas	Living in the small town of Dryfield, in the high desert of the Mojave, Douglas is now the only inhabitant of the abandoned town. An avid gun collector, he is an expert in all types of weapons and armament. With his knowledge of the desert and weapons expertise, Douglas might prove useful in the fight against the NMC's.
Flint	Flint is Gary's pet dog, although he doesn't have much of a large role accept for protecting his master and helping Aya find her way to a few people..
Rupert Broderick	Rupert is a bounty hunter, much like Aya. He holds something personal against NMC's, in part because his daughter was killed by one of them. Perhaps the drive for revenge is what made him become one of the nation's top marksmen when it comes to handguns.
Eric Baldwin	Eric Baldwin is the cheif investigator of MIST who gives orders to his team with instructions.
No. 9	"Number Nine" is a king golem; specifically one sent out to assassinate Aya and seems to be working for someone or for some cause... You'll come into conflict with him many times in the duration of the game.
Mutants and GOLEMs	There are generally three different types of these. 'Normal' NMC, ANMC, and Golems. An NMC (Neo Mitochondrion Creature) is a mutated insect or animal.. If you've played the first Parasite Eve, then this is what Aya had fought. Two more types are now in Parasite Eve 2. An ANMC (Artificial Neo Mitochondrion Creature); a grossly mutated human that hardly looks like a human anymore (you'll be able to notice these). A GOLEM is one of the 'soldier' looking types that look much like an enhanced human in some kind of uniform (they are cyborgs created in 2nd Neoteny Plan).. Although they are just as dangerous, if not more, then the ANMC's.
Eve	Eve in Parasite Eve 2 looks much like a younger version of Aya. Even though you don't fight Eve directly in the game, you do get into a boss fight involving her. She controls a huge, mutant monster called a "Puppet Stinger". Depending on how you go about Eve, it will reflect which outcome you'll see at the end of the game (there are three).

[ Info Acquired by Me. ]