How do i remove a character? [closed]

I already asked this question, but no one answered it. So I am making a menu gui, where when you first join the game it will not load your character but after you click a button it will load your character. NO, I AM NOT ASKING HOW DO I MAKE A CHARACTER NOT LOAD INSTANTLY. My gui works perfectly fine, except when you reset character, I need to know how do I remove the character so that it acts as if you just joined the game and your character hasn't loaded yet.