Hannigan (Lily) married her Buffy the Vampire Slayer costar Alexis Denisof at Two Bunch Palms Resort in Desert Hot Springs, California, on October 11, 2003.
The couple have two daughters, Satyana Marie Denisof, born March 24, 2009, also Hannigan's birthday, and Keeva Jane Denisof, born May 23, 2012.
Hannigan and her husband are godparents to Joss Whedon's son, Arden.
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Things You Didn't Know About HIMYM
FanfictionHere are some mind-blowing facts that you probably didn't know about the show How I Met Your Mother.