"Buffy" meets the Capeside High gang!
Gellar, who was battling demons as Buffy on The WB's (and later UPN's) "Buffy the Vampire Slayer" at the same time "Dawson's Creek" aired on the network, joked in the caption that she was the teen drama's forgotten cast member.
"Like the fifth #Beattle (sic), the fourth member of #destinyschild and Ryan (sic) Dunkleman, there is me," she wrote.
It's hardly the first time the "Cruel Intentions" star, 41, has poked fun at her love for the Capeside High kids.
Gellar popped into the comments to express her excitement.
"I don't want to wait ... for my issue," she quipped, making a pun out of the series' theme song, "I Don’t Want to Wait" by Paula Cole.
In this era of reboots and revivals, here's our wacky Hollywood pitch: a new "Buffy"/"Dawson's" crossover series. We'd watch!