United Kingdom, March 19 -- Sarah Michelle Gellar didn't hesitate about throwing gatecrashers out of Freddie Prinze Jr.'s birthday party.

The Buffy the Vampire Slayer actress' husband turned 50 earlier this month and she marked the occasion with a big bash, but was left unimpressed when she realised two women had found their way into the celebrations without an invitation.

Speaking on SiriusXM's The Morning Mash Up, Sarah said: "I just threw Freddie's 50th birthday party, and we had crashers.

"So, really funny. First there were these two girls, and they were in line for the photo booth, and I was taking a picture with someone and look.

"Freddie has some friends that I don't know, and there were some people on the invite list that had ...