A few casting quickies:

" As scooped on Monday by the Ausiello Report, Piper Perabo ( Coyote Ugly) is joining House for the season's penultimate episode, playing a potential love interest for the grumpy doc. See Mike for more.

" Kevin Sorbo ( Hercules, The O.C.) will headline Hallmark Channel's Avenging Angel, playing a fallen preacherman out to punish some church-torching marauders.

" Also per the Reporter, Andy Serkis, aka the LOTR films' Gollum, will star as Albert Einstein in Einstein and Eddington, a TV-movie collaboration between HBO and the BBC. Doctor Who's David Tennant will play the latter astrophysicist, Sir Arthur Eddington.