Buffy

Did you know Katie Holmes was originally cast as Buffy? We can really see her doing it as well. Makes you wonder if she later regretted it when the show went to it's later seasons and got so big.

SMG was originally cast as Cordelia and moved up to Buffy later. Having seen Cruel Intentions a few times we can see how she would have been good in the role, playing opposite Katie Holmes.

As it is Charisma Carpenter was perfect as Cordelia in the show, and took the character to another level in Angel.

Which makes you wonder what SMG would have ended up doing in GG?