Holli Dempsey was born in London. She is a British actress who played Willow in the two-part final ever episode of The Bill in 2010.
She also played Vicky in Ricky Gervais’s Derek and Vera in the 2016 film version of Dad’s Army.
Dempsey plays Holly in the TV series The Aliens and has appeared in ITV's Plebs.
She has also appeared in ITV’s The Delivery Man and The Ice Cream Girls an ITV drama based on the novel by Dorothy Koomson. Dempsey also appears in the 2015 British comedy film Aaaaaaaah! directed by Steve Oram.
In 2016, she appeared in "Hated in the Nation", an episode of the anthology series Black Mirror.