Who's A Hero

According to the Ask Ausiello column of TV Guide, Christopher Eccleston is very soon to join the cast of Heroes. He's also apparently 'the original Dr. Who'. Sigh.

How about David Tennant on House? Or Billie Piper on Medium? I like Eccleston best of all, but either of those shows would still suit me better.

[EDIT: Has now been confirmed that Ecclestion's role is a recurring one, beginning in January. The official announcement, such as it is, can be expected from Entertainment Weekly this Friday]