Alyson Hannigan & Alexis Denisof: Seahorse Halloween Couple!
Earlier in the day, Alyson tweeted, “Happy Halloween!!! Or as I say in my house Happy cupcake day!!!”
It was recently announced that Alyson‘s Buffy The Vampire Slayer
co-star Seth Green is set to guest star on her hit show How I Met Your Mother as a guy named Daryl who thinks Lily (Hannigan) was his best friend in college.