This is Hearty White, who has occasionally commented on our site under the name "Ovadiah David." He's auditioning for the part of "The Doctor" for whenever Matt Smith leaves the show. There's really nothing more anyone needs to know apart from that. Just let his work speak for itself.
(The opinions of Mr. White are not those of Republibot, its editors, or sponsors. Any resemblance to a Timelord is purely coincidental. Brain bleach not included.)