Sorry if I'm bad at explaining this, I always stayed away from looking for help online and just try to fix my problems myself, also i'm by no means an animator or even much of a modeler, I'm actually a programmer so excuse me not describing this well and feel free to ask for any needed info to help.
basically i got a cube (the head) inside of another cube (the overlay), they are rigged and have the same weights on but the head deforms more than the overlay, thus creating clipping, i have overlays on each body part but for some reason it's only the head that is giving problems