Make Characters Disappear?

[Jet Prower]

I'm not sure if this is a simple or hard thing to fix, but yes I have another question. Who knows how many more as I come to them.

This time I have a NPC character walking to a door and I want them to disappear when they walk into the door square. I want the character to disappear and then when you walk into that square, to be able to still go through the door. ALso so you guys know, this isn't just one NPC this is many many many NPC characters I want to walk through the same doorway one after another and  each disappear one after the other when they reach that one spot.

How can I do this?

[Sirius]

You can get them to disappear with switches. Set up one for each character, and make them function like you would an average chest. Make sure the second page has a blank graphic, and you're good to go.