The cast of FNaF 4 consist of the Nightmare animatronics. This is also the first time human characters have a more important part of the lore, outside of William Afton and the murdered kids.

Any character in this section marked with "*" are "questionably canon" according to Scott, but they might be this way in terms of their role in the story of that game.

Any character marked with "~" is not an official given name by canon sources.