(Cover) - EN Showbiz - Kelsey Grammer has raised eyebrows by taking his baby daughter to a party at the Playboy Mansion.

The actor attended Hugh Hefner's Halloween celebration with three-month-old Faith, TMZ reports.

According to onlookers, the star stayed until the early hours with the newborn kept safe in a cradle.

"A party-goer tells us... Kelsey was whooping it up at a table next to Paris Hilton just after midnight. Baby Faith was tucked into her bassinet as the music blared," TMZ writes.

The father-daughter duo set tongues wagging as some guests questioned the Frasier star's decision to bring his child to the infamous venue.

Known for its scantily-clad inhabitants and wild parties, Hefner's home is not what most people would consider a suitable place to bring a minor.

"A Playboy Playmate with curious maternal instincts tweeted, Why the f**k does Kelsey Grammer have a newborn baby at the Mansion party!?!?!? (sic),'" TMZ added.

Baby Faith is the actor's first child with his fourth wife Kayte Walsh. (C) Cover Media