Algunas teorÃas barajadas y especulaciones varias:
1º - La verdadera identidad de NÉMESIS es Billy Coen"I was playing RE:0 again recently and during the scene where Billy meets Rebecca for the first time, I had a startling revelation - Billy Coen could very well be Nemesis. Now, I know this theory has been presented before, but this particular scene really made me warm up to the possibility. Listen carefully to the dialogue, and the way Billy says the sentence "Oh, I see. You're with S.T.A.R.S..." Notice the way he elongates "S.T.A.R.S." like a certain BOW from RE3. It's a very vague detail and I'm probably reaching, but it would make sense within the context of the RE universe. The S.T.A.R.S. were hunting HIM in RE:0, and since Umbrella, specifically Birkin, knew about Billy and his subsequent survival after killing the Queen Leech, you'd think maybe Umbrella would turn the tables on the S.T.A.R.S. It's not a huge stretch to think Birkin sent a few soldiers after him considering the knowledge he gained on Umbrella during RE:0. Aside from Capcom's lack of foresight in the story and that they didn't know there'd be a prequel when they made RE1 originally, why hasn't Billy appeared in any of the games since, or at least mentioned between games in later incarnations when Capcom knew what they were doing with the story (like adding those EX files to the N64 version of RE2 to make it gel with RE:0 and RE3)? He could've been ambushed on his way through or out of Raccoon Forest and put into the Nemesis program soon after. Keeping in mind that all of the main characters in the series have a relevant spot in the RE timeline, it doesn't make sense to me that Capcom would just use "some guy" as a playable character and not have any future plans for him at all."
2º - La verdadera identidad de NÉMESIS es uno de los miembros de STARS"Enrico Marini, Forest Speyer, Richard Aiken, Kenneth j Sullivan, Edward Dewey, Kevin Dooley, James Marcus I´m discrediting Albert Wesker as he is alive in code veronica so it cant be him.
Firstly lets look at motives. Enrico knew one of the S.T.A.R.S. team members betrayed the team, with less memory and infected, all he probably can think of is revenge. And who to S.T.A.R.S. as he can´t remember who betrayed them he kills them all. It´s plausible. I mean his body was intact and left in a sewer where any virus could have escaped too.
Forest Speyer, pecked to death by birds however became a zombie, which you kill so it is less likely him. Richard Aiken eaten by a snake, doubtfully his body would never be found. Kenneth lost his head where nemesis looks like his head mutated from someone who had a head. Edward Dewey was left dead on a train that crashes. In fact has nobody ever really checked, I mean Rebecca just screamed and said he was dead, he could have been unconscious and by time the movie goes she would have been in the mansion before Edward woke up. Both way he is missing and a possible for Nemesis. Kevin Dooley, more likely had become a zombie by then I mean all that time in the forest half-eaten, he´s a zombie, at most a red head by now and the same thing with Joseph Frost. James Marcus was a Human Leech. I doubt that transformed into Nemesis."
3º - NÉMESIS es simplemente un proyecto de Umbrella obtenido a partir del parásito de RE 4 (Las plagas)"My guess is Nemesis isn't really anyone but it is most likely that the Nemesis parasite originated from Spain or more specific the place where Leon is in Resident Evil 4. The only possible fault in my theory is that Wesker's report states that it originated from Paris.... oh well. It might have come from Spain anyway."
4º - La verdadera identidad de NÉMESIS es el propio Spencer "All the theories based on who could be Nemesis are all false and I just realized why. For starters, many people believe that either Billy Coen or a killed member of S.T.A.R.S. I have strong evidence to suggest otherwise. If you read Weskers report 2 carefully, it says that the Nemesis project is already being worked on, and this is years before anything involving the train and mansion incident occurs. That rules out anybody you see in the resident evil games. This is just a theory and I may have read Weskers report completely wrong, but I thought of something. Maybe Spencer is the Nemesis. I know that in RE 0 Wesker says that Spencer´s career will be over, but maybe Spencer is the Nemesis. Nemesis is intelligent. It also says in Weskers report that Spencer was going crazy and didn´t care about making money anymore. Perhaps all he wanted was power so he turned himself into the Nemesis. Perhaps only Birkin and Wesker know this. Wesker and Nemesis would have found forms of communicating. It´s a complete possibility since we hear virtually nothing about Spencer before Nemesis is killed and after that there is no present or future reference to him. It´s just a theory but I think its one worthy of thinking about."
Y para los interesados, aquà os dejo un enlace a "The Nemesis Report File"
http://www.rehorror.net/thirdeye06/mmm_nemesis.phpEsta info esta sacada de
"FOROS VANDAL" espero que no haya inconveniencia.