Is there a way to use a player model for a mob, while still using a player skin as the texture?

I want to create a mob that looks like a player (the alex skin dimensions, not the steve one), but is hostile towards everything. I tried having it set as a biped, but it didn't work. Is there a way for me to make the mob I want to make?

(I'm unsure if this is in the right section. If it isn't, I'm sorry..)