What I gathered:

Harold goes to the left door AND the right. His laughs indicate which side he’s approaching from.

Jake will go to the center hallway. When he has those red glowy eyes, there should be a tiny tv u need to click which activates the center door to shut him off. Make sure you time perfectly! It has a cooldown so if u mess up the first time well…

For Night 3, (which I haven’t tried yet) I think the robot Mallie and Jaiden activate. Mallie goes to the center door. Once that same tiny tv makes a noise, CLICK THE WHITE BUTTON WITH THE MAGNIFYING GLASS TO TURN THE NOISE OFF. Her ears are sensitive, so that’s why u need to disable the noise. You CAN try the red button to immediately turn the noise off…(but the red button can sometimes fail u. So always do the white)

(This is my fanart for the game by the way)

Jaiden

He only goes to the left door. Sometimes he goes to the power room. U can close the power room door at times to shut him out, but if he’s already in, it won’t work. HE WILL TRY TO CAUSE A POWER OUTAGE. Use the voltage shock if ur too late on the door!

Now I haven’t encountered Leopold, but he comes on night 4. He’s basically just a Harold clone, but can also do that power room attack like Jaiden. So a mix of Jaiden and Harold pretty much