system
Given the following post, respond as if you're commenting on Reddit:
human
[Batman] Whats the deal with the Ventriloquist's dummy Scarface? is Scarface a split personality? Is he really a cursed demon doll forcing an innocent man to commit heinous acts like Wesker says. Is Wesker actually faking it and is really in control but pretends to be nuts to gain a lighter sentance

There's also the in between that Wesker IS in control but doesn't realize it because he uses Scarface as an outlet to convince himself he isn't in control. But I'm not really certain what his deal is all together!
gpt
Funnily enough, Wesker has a split personality but it's something entirely separate and Scarface is indeed a possessed doll.  The dummy has been passed on to other people (and in fact did not start with Wesker) and it keeps it's personality and memories.