Pete (Oblitus Casa) - Periodically, he'll appear in your office. Keep the light on until he leaves.

Hellbound Photo-Negative Mickey (TEOD) - When you see him in your left door, use the heater to prevent his attack. He will only attack once.

??? - When he's in your office, play Sound 2 as soon as possible.

Decimated Mickey (TMK) - When you see him at your window, shine the flashlight on him. Occasionally the heater can prevent his attack.

Phone - A button saying "Mute Call" will appear at a random position on your screen. If you do not click on it in time, a phone call will play and your noise meter will increase.