Air Adventure BB: Random Points in the Night, BB's Air Adventure will appear on your screen collect all the Balloons to get it to leave, if you don't on time or wait to long. He'll kill you.

William Afton: He will appear in your office and blast out its been so long. Play the Global Music Box to get him to leave

Vanny: Vanny will sometimes hack into your Monitor with her Mask becoming more visible the longer shes on it, Shut it off to make her go away. If it is left on and the Mask is Visible she will Jump out and Kill You.