10 Biggest Plot Holes In Buffy The Vampire Slayer

10. Buffy Has More Than One Birthday

In 1997, Buffy arrives at Sunnydale High as a sophomore student and turns sixteen by the end of the show’s first season – at least in theory.

In ‘I Robot…You Jane’, there’s a major blunder involving Buffy’s birthday. When a demon called Moloch starts investigating Buffy, he finds her school profile and her birthday: 24th October 1980. Seconds later, Fritz looks at the very same profile, and the date has changed to 6th May 1979. This is an obvious inconsistency, and the latter doesn’t even make sense – Buffy’s not meant to be seventeen until the next season.

To make matters worse, even the first date is wrong. Officially – and Joss Whedon has confirmed this – Buffy’s birthday is 19th January 1981, which aligns with the birthday episodes in the other six seasons.

But this still doesn’t explain what happened in the first season. Somehow, they managed to mess up Buffy’s birthday twice in the same episode.