I feel like I've missed important information in ghiab, like who are those doctors (Tallbart or something I think it was??) and how do they know about the animatronics? I've forgotten the plot 😭
Sure thing! Spoilers ahead, read at you own risk!
So, the first time Dr. Taggart is mentioned is with Jake, Andrew, and Bunny. Taggart was doing experiment on old relics of Freddy's or related, trying to find things that were haunted and believing it was due to emotional residue instead of active haunting.
While experimenting on Fetch's remains (who Andrew was possessing), Jake, who was in his old doll and had been acquired by Taggart as well, spoke up. Taggart was thrilled at this and after interviewing Jake and getting what he could, he took parts from both Fetch and the doll to make the endoskeleton that was later known as the Stitchwraith, which was possessed by both Andrew and Jake.
Bunny, who was possessing a rabbit doll that was also stored by Taggart, convinced the two to escape with him and they managed to flee from his home. During which, a shelf was knocked onto Taggart but he survived.
Talbert was first mentioned by James Wight, the CEO spearheading the creation of the Pizzaplex and return of Fazbear Entertainment. At first it seemed like they were simply working together on technology for the Pizzaplex, but later things became more cryptic when workers found the body of a missing technician.
Talbert took over the handling of the body and got everyone to sign waivers and swear to secrecy while he dealt with it. However, as revealed soon after and then followed up on later, Talbert did not report the body at all instead took it somewhere else...
The truth about Taggart and Talbert was finally revealed in the false finale arc- in the 90s chapters. Mike and the others go down the elevator in Roxy Raceway, into the sinkhole that has been a problem for the Pizzaplex. Only to realize it's not a sinkhole, but an underground establishment and laboratory a'la Afton Robotics Incorporated (the building that houses Circus Baby's Rentals in Home).
Getting into a suspiciously left open computer (a'la Vanny) the truth about everything is finally revealed.
Dr. Taggart and Dr. Talbert are scientific partners and work with their own company, Talgart Industries (a name teased earlier in the Eleanor chapter). Talgart Industries has been funding the Pizzaplex to expand their endeavors and research. What research?
Well, these two have acquired information from both ARI and leftover files from the fake pizzeria fire, among other things, and are very aware of the haunted animatronics. Whether it's investigating these 'emotionally charged items' or building android bodies to extend human life, they're looking into the hauntings to do so.
And creating the perfect environment to do so. The Pizzaplex, in fact, isn't just an innocent entertainment venue. It was made specifically as to encourage the same thing that happened at Freddy's to happen again. People die, they cover it up, and they see what begins to come to life in the meantime. And in the case of Glamrock Freddy the experiment is seemingly working as planned.
But the most concerning part is the knowledge they have about Marionette and the other living animatronics. They label Mari as 'Patient Zero' and are aware that he is what has brought many animatronics to life, and are keeping an eye on him. Seeing him as being docile at Foxy's, they looked to lure him in without intending to restrain him- however, they built the Glamrocks with the means to subdue and capture him if needed. Each of the Glamrocks' upgrades is actually tailored specifically for this. So that if things didn't work out, or if they lost track of the puppet, they could have a backup to reclaim him.
They're also tracking down Ennard, who they believe is the Mimic who they are looking for. Because of this, they dumped Eleanor, a refitted attendant bot, into the dump where he is known to prowl. However, Sarah ended up finding her first and that became a whole thing.
In short, Dr. Taggart and Dr. Talbert are two pretty big threats who have been working in the background of GHIAB and were only just now seen for what they really are. This is only the beginning of an ordeal with them though, because even if Freddy's falls they're more than equipped to keep going.
We don't really know much about them now, but rest unassured that they WILL be an issue in the next book.
