I was looking at the Birth by Sleep article on the KH Wikipedia Kingdom Hearts Birth by Sleep - Kingdom Hearts Wiki - A world of information not accessible by Gummiship
and according to that, Crispin Freeman and Richard Epcar are both confirmed to play unidentified roles.
I searched for proof that this was true and at the bottom of the page (Notes and References) I found the links that showed proof.
If this is not new information, I apologize.
If it is, begin speculating, I guess.
I think its very likely that Richard Epcar is Master Xehanort.
Crispin Freeman I don't know much about, but from what voices I've heard him do, I'd say Vanitas.
and according to that, Crispin Freeman and Richard Epcar are both confirmed to play unidentified roles.
I searched for proof that this was true and at the bottom of the page (Notes and References) I found the links that showed proof.
If this is not new information, I apologize.
If it is, begin speculating, I guess.
I think its very likely that Richard Epcar is Master Xehanort.
Crispin Freeman I don't know much about, but from what voices I've heard him do, I'd say Vanitas.