The London-born actress has a starring role as James Norton’s love interest in the hotly-anticipated BBC programme.
And if her previous TV stints have anything to go by, she will attract a lot of viewers.
In a resurfaced clip from American drama The Knick, the 38-year-old star stripped off for a steamy sex scene.
Playing Cornelia Robertson in the show, she went topless and flashed the flesh whilst sitting on a chair.
The programme followed the lives of the staff at Knickerbocker Hospital in New York during the early twentieth century.
Juliet will now be making an appearance on New Year’s Day as she plays Rebecca in the multi-million pound series McMafia.
She portrays the morally upstanding girlfriend of Alex Godman (James Norton) who is the son of a former Russian Godfather.
The eight-part series will see Alex dragged back into his mafia background as he’s forced to make some life-or-death decisions to protect the ones he loves the most.
The new show is based on Misha Glenny’s 2008 hit book non-fiction book McMafia: A Journey Through The Global Criminal Underworld.
McMafia airs on New Year’s Day at 9pm on BBC One.