You can have one human and one non-human companions (total of 2)...but you can't have two human or two non-human companions together.
The face - once your chr. is created, no. Unless you're on PC and are very good at modding/using the GECK face creator to recreate exactly what you had before, perhaps.
If you haven't created your chr. yet...then it's just a matter of picking the same "look" options as you did before, as closely as you can remember.