I know this was posted a while ago, but while reading it, I got so distressed at all the misinformation, that I had to clear a few things up...
Timothy Britten Parker (Toby Parker) is not in the film version of RENT because he did not have an out in his WICKED contract, where he is currently playing Dr. Dillamond.
Yes, he is Sarah Jessica Parker's brother. When he is not on tour, he lives in New York City, where he has for most of his life, along with almost all of his brothers and sisters.
Pippin Parker, a successful writer and founding member of Naked Angels, is also Sarah's brother.
The other members of the family: Rachel Parker Andrew Forste Megan Forste Allegra Forste Aaron Forste
Timothy occassionally sings in NY with a jazz trio under the name Toby Parker, and he is amazing...I saw him last year at a club called Opia. He also did a show at a club in Chicago while the WICKED tour was there.
And, he is one of the nicest people I have ever met....and I might add has added so, so, so much more to the role of Dr. Dillamond, than anyone else who has played it...