Not much can be determined about "Forkface's" personality due to them not being able to speak. However they seem to be frustrated with not being able to talk. While coming across as creepy at times like when they chased and force fed Earth Pizza, they don't seem to have bad intentions. At one point they did steal Foxy's voice box but once confronted they gave it back pretty easily. Though they do seem to have some sort of grudge against Ruin for what happened to Ruin Monty.