Sarah Michelle Gellar obsessed with Robin Williams

OHMYGOSSIP — Sarah Michelle Gellar (36) is growing close to her new TV costar Robin Williams — and her husband isn’t happy! The actress — who’s married to Freddie Prinza Jr. — stars alongside Robin in the CBS comedy The Crazy Ones, premiering Sept. 26.

Sarah and Robin play the father-and-daughter heads of a big-time advertising firm, and Gellar says they are just as close in real life.

“Robin went on about Sarah and how lucky Freddie is to have her as his wife,” revealed an insider.

“Freddie replied he’s a good husband and father and he likes to think that Sarah is pretty lucky too. Robin was flabbergasted – he didn’t know how to take it.

“Sarah goes on and on about what a dream it is to work with Robin and how he even gives her parenting tips. Freddie feels like, ‘Enough with this guy, already!’

“Freddie is great to Sarah.”