UESP WIKI Console Commands:
disable Don't render the selected object (includes actors.) The object will be made invisible, collision will also be turned off and AI won't process on the object, but scripting on the object will run. (Unlike Oblivion, where it would instantly crash to desktop, the player can't be disabled.)
(devi aprire la console, cliccare sull'oggetto / personaggio, e poi digitare 'disable'. L'oggetto o il personaggio c'e' ma non si vede, ne' ci si sbatte contro.