It's some guy named Zane who could be employed by MTV solely for Subterranean UK, but I doubt it. My guess is that he's on MTVUK, too.

I usually fast-forward through the host segments, as I don't care what he has to say and he's fairly annoying anyway (usually every band he plays is his favorite), but, from what I remember, he has a fairly flat London accent. Nothing, I think, like Jamie Oliver's, although I'll admit that Jamie's lisp is the most significant part of his voice to me.