The Merovingian (minor matrix spoilers).

[Corinth]

A side note: Four of the Merovingian's minions are "monsters", and it is implied that all of the others are also "monsters- rogue programs that were, at one time, Agent programs. This would fit the Merovingian's role as a Hades figure--the Dark Lord of the Underworld in both the gangland and mythological senses--and it fits with Neo's role as a hero--heroes are often monster-slayers--in his pursuit of the Quest of the One.

My .sig pretty much sums up my take on all of the rogue programs- one that's apparently shared by the Oracle, the Architect and the Agents.

 

[Ysgarran]

It wasn't clear to me that the 'monsters' were all rogue Agents. Rather I thought they were rogue programs of one sort or another. When the oracle is speaking to Neo she mentions that there are all sorts of programs running around in the matrix. She uses the crows for an example.

I would prefer that each crow has a seperate limited AI program associated with it rather than a master AI that runs all crows.

later,
Ysgarran.

 

[manofsteel1303]

I have a theory that the Merovingian, the Architect, and the Oracle are all connected to Neo like a family. The Architect and the Oracle are all ready established as a father and mother pair. Neo is the star child, the straight A student that can do no wrong. Neo is the younger child that the parents pay all attention to. Merovingian is the older, rebel brother, who used to get the attention but now is lacking, he is the Cain to Neo's Abel. We've seen that he's not just a program, but he can write programs (everybody's favorite cake!!), so he must be fairly powerful. This also follows Biblical lines, the Architect is God, Neo is Jesus (a comparison made by almost any reviewer I've read), and then Merovingian is Lucifer, or Hades. If you get a chance to play Enter the Matrix, the video game (and counterpart) to the series you see that the Oracle and the Merovingian have very close ties. Also, two other rebel characters who are seen but whose names are not revealed are named in the game as Cain and Abel. The Wachowskis are masters of playing with names and titles, everything has a meaning, they didn't name these guys randomly.

P.S. - If you saw my post on a discussion about the Neo/Architect decision, you saw how I feel that Neo is himself the Matrix. If so, this only confirms this family theory because the Architect admits to being the father of the Matrix.

 

[Mathew_Freeman]

Being as I'm unlikely to get a chance to play the game, is there any more details you can provide us that might shed light on the film?

 

[Ankh-Morpork Guard]

Being as I'm unlikely to get a chance to play the game, is there any more details you can provide us that might shed light on the film?

My friend got the game and was telling me a lot of stuff...annoyingly enough, I've fogotten a lot of it...but I do remember that it seems to be backing the "Neo can use his powers in the Real World" more than the "Matrix within a Matrix" theory...argh, I'm going to talk to him about it again and post about it...all I can really specifically remember is that the Oracle appears at one point and looks different than she usually does...and Smith appears at one point, sees you, says "Not the one I'm looking for" and leaves.
I'll post again after I've talked to him.

 

[The Serge]

This also follows Biblical lines, the Architect is God, Neo is Jesus....

I would think that this follows more along gnostic Christian lines and that The Architect is the Demiurge. Afterall, it's clear that he is utterly debased and willfully Evil, creating a world that traps human bodies to power machines (a twist in a way to certain gnostic thought since some strains believed that the physical world was a trap for the spirit).