It makes me wonder what SMG would have been like as Joey.
I couldn't see anyone else play Angel either.
I found this on IMDB.
Is this site reliable?
* Series star Sarah Michelle Gellar initially auditioned for the role of Cordelia Chase, and Charisma Carpenter, who plays Cordelia, auditioned for the role of Buffy. Others who auditioned for Buffy and got other roles include Julie Benz (Darla), Elizabeth Anne Allen (Amy Madison), Julia Lee (Anne) and Mercedes McNab (Harmony Kendall). Bianca Lawson, who played Kendra the Vampire Slayer in season 2, originally auditioned for the role of Cordelia.
* Nathan Fillion (Caleb) originally auditioned for the role of Angel when the show was first being cast in late 1996.
* Other actresses considered for the lead role as Buffy also included Katie Holmes and Selma Blair.
* Danny Strong (Jonathan) originally auditioned for the role of Xander.
* Ryan Reynolds was originally offered the role of Xander.
1997 - Trivia
http://www.imdb.com/title/tt0118276/trivia