Sarah Michelle Gellar & Alyson Hannigan Are Still Friends Years After 'Buffy the Vampire Slayer' Ended

Sarah Michelle Gellar chats on the phone while out and about on Friday afternoon (November 21) in West Hollywood, Calif.

The 37-year-old actress was heading back to her car after visiting the salon to get her hair done.

PHOTOS: Check out the latest pics of Sarah Michelle Gellar

During a recent Twitter spree, Sarah revealed that even though it’s been over 11 years since Buffy the Vampire Slayer ended, she still keeps in contact with her co-star Alyson Hannigan.

“she was so sweet and invited us for Halloween, but sadly Los Angeles traffic made it impossible,” she tweeted to a fan.

10+ pictures inside of Sarah Michelle Gellar stopping by a salon in West Hollywood…