Alex and Terrence Afton are William's eldest kids and identical twins. being the oldest, they were set to inherit Fazbear Entertainment and know pretty much all there is to know about robotics (Terrence is the marketing technician side and Alex does the creative and human-satisfaction-human-interaction shit). they'd be a pretty good team, if William didn't feel threatened. see, the man knew his sons could easily figure out what was going on, so he began to shun them away from his business and himself. ofc, this didn't impact the boys' mental health very well, and Terrence began picking on his younger siblings who seemed to still be being showered with William's attention. long story short, Terrence is Foxybro, Alex wasn't there for the bite, both boys were shunned by the rest of the fam, find out abt William's murder spree, learn abt remnant, and become nightguards to undo what their dad has done
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Alex: T-Terrence . . . where are we?
Terrence: . . . we're at the Pizzeria . . . .