Well, bad news:
Apparently, Mark's agency no longer represents him (agency was the only known way to him). So, by law, they are not allowed to give me any of his personal contact information or his current whereabouts.
So, the interview is kinda dead in the water for now. But, I will hang onto all of your questions and comments just in case!
In the meantime, I'll look into getting contacts of other voice actors/actresses. Any requests?