Willow is originally a who excels at academics, providing a contrast to Buffy's outgoing personality and less-than-stellar educational record.
Buffy and Willow are the only characters who appear in all 144 episodes; Xander is missing in.
Her approach subsequently got her the role.
He then takes her body and brings it to Giles's home, laying it in his bed for the Watcher to find.
Joss Whedon is not as involved in the rebooted Buffy comic as he was in Dark Horse's continuation, however he did take part in the initial development stages for the series and gave his blessing to the creators.
It is later discovered that the Key's protectors have used Buffy's blood to turn the Key into human form — Dawn — concurrently implanting everybody with lifelong memories of her.