The sitcom consistently earned high rankings and according toHollywood Reporter, 12.9 million people watched the series finale.

Hannigan perfectly portrayed the kindergarten teacher turned art consultant.

While it’s hard to imagine “HIMYM” without Lily, this lovable character almost didn’t exist.

Alyson Hannigan smiling

Series creator Craig Thomas revealed the origins of Lily Aldrin in 2006 around the end of season 1.

Craig said, “None of us knew about ‘Buffy,’ and my wife said, ‘Watch ‘Buffy.

And she basically said, “‘That kind of freaks me out.

Alyson Hannigan on the set of Buffy The Vampire Slayer

I’ll let you do it if you’re free to get Alyson Hannigan to play me.

If you could get Willow!’

And somehow it happened!”