Jim Davidson, reality stars and Dappy among contestants to enter Celebrity Big Brother house

Comedian Jim Davidson and former world heavyweight boxing champion Evander Holyfield are among a dozen contestants who have signed up for the latest series of Celebrity Big Brother.

The Channel 5 show, hosted by Emma Willis, will use 45 cameras to keep an eye on the latest batch of housemates, which include reality TV veterans Sam Faiers, from The Only Way Is Essex, and Made In Chelsea's Ollie Locke

Here are the 12 famous faces who have entered the house:

Jim Davidson

Comedian Jim Davidson shot to fame as a stand-up comic in talent show New Faces. Credit: Matt Frost/Channel 5/PA Wire

He shot to fame as a stand-up comic in talent show New Faces in 1976 before going on to star in countless TV shows including The Generation Game and becoming a regular on the pantomime circuit.

The comedian was reportedly forced to pull out of the last series after he was arrested on suspicion of historic sexual offences. Last year, Davidson was told he would face no further action following the allegations.

Sam Faiers

Sam Faiers is known for appearing on the ITV2 show The Only Way Is Essex. Credit: Matt Frost/Channel 5/PA Wire

She is known for appearing on the ITV2 show The Only Way Is Essex and now runs a shop, Millie's Boutique, in Brentwood with her sister Billie, who also appeared in the show.

Faiers - whose on-off relationship with co-star Joey Essex has been followed by Towie viewers - had hoped to be a Page Three girl before finding TV fame and says she would still like to model for lingerie firm Ann Summers.

Ollie Locke

Ollie Locke is known for appearing in the Channel 4 series Made In Chelsea. Credit: Matt Frost/Channel 5/PA Wire

He has become a familiar face to Channel 4 viewers for featuring in the series Made In Chelsea, appearing in five series before announcing he was quitting.

Liz Jones

Journalist and columnist Liz Jones. Credit: Matt Frost/Channel 5/PA Wire

She s a journalist and columnist whose controversial views have often divided opinion and she has been publicly blasted by figures such as Rihanna and Phillip Schofield.

The former editor of Marie Claire earned a rebuke from Schofield for her criticism of his fellow This Morning host Holly Willoughby for not wearing make-up, and she upset singer Rihanna by calling her a "toxic role model for her army of young fans".

Luisa Zissman

Luisa Zissman was runner up in BBC1's The Apprentice. Credit: Matt Frost/Channel 5/PA Wire

She was runner-up in BBC1's The Apprentice last year, losing out to rival Leah Totton. She developed her business nous by setting up her cupcake business in Hertfordshire and a baking website.

On joining The Apprentice last year, she said of herself: "I have the energy of a Duracell bunny, sex appeal of Jessica Rabbit, and a brain like Einstein."

Evander Holyfield

Evander Holyfield is a four-times world heavyweight boxing champion. Credit: Matt Frost/Channel 5/PA Wire

He is a four-times world heavyweight boxing champion but is probably best known for the moment Mike Tyson bit off a part of his ear during a bout in Las Vegas which was dubbed the Bite Fight.

The US boxer started out as an amateur representing the USA at the 1984 Olympics before turning professional.

Lee Ryan

Lee Ryan shot to fame as part of the boyband Blue. Credit: Matt Frost/Channel 5/PA Wire

He was only 17 when he shot to fame as part of the boyband Blue, who had hits including All Rise and One Love.

The band appeared on ITV's The Big Reunion last year alongside other acts including 911 and Liberty X.

Dappy

Dappy formed his old band N-Dubz with friend Fazer and cousin Tulisa. Credit: Matt Frost/Channel 5/PA Wire

Dappy, whose real name is Costadinos Contostavlos, formed his old band N-Dubz in Camden Town, north London, with his friend Fazer and cousin Tulisa when he was only 13 and went on to have a string of top 40 hits.

He has rarely been far from some form of controversy, gaffe or ill-judged remark since finding fame and has been rebuked by a government minister, castigated for his drug admissions, and appeared in court several times during his short period in the spotlight.

Lionel Blair

Actor, dancer and entertainer Lionel Blair has signed up for the latest series of Celebrity Big Brother. Credit: Matt Frost/Channel 5/PA Wire

Blair is a light entertainment veteran, best known to TV viewers for his stint as a team captain on charades-style TV show Give Us A Clue, after years on stage and in variety shows.

The tap-dancing star was born in Canada but came to live in Britain from the age of two onwards and his earliest public performances took place as he sheltered from air raids in the Second World War.

Casey Batchelor

Casey Batchelor regularly appears in men's magazines including Zoo and Nuts. Credit: Matt Frost/Channel 5/PA Wire

The glamour model is a regular sight for readers of men's magazines including Zoo and Nuts and she was named Miss Maxim in April 2006.

Batchelor, who was once reported to be dating The Only Way Is Essex star Kirk Norcross, said one of her ambitions is to set up a lingerie firm.

Jasmine Waltz

American actress Jasmine Waltz has carved out a career with minor roles in films and TV shows. Credit: Matt Frost/Channel 5/PA Wire

Waltz has carved out a career with minor roles in films and TV shows but it is her lovelife which has kept her in the news, with reported romances including actor David Arquette and English rugby player Danny Cipriani.

The American actress also hit the headlines in 2010 when she reportedly punched Lindsay Lohan in the face during a night out.

Linda Nolan

Linda Nolan enjoyed chart success alongside her sisters, under the name The Nolans. Credit: Matt Frost/Channel 5/PA Wire

She enjoyed chart success with hits such as I'm In The Mood For Dancing and Don't Make Waves, alongside her sisters, under the name The Nolans.

They made their TV debut in 1974 appearing on a Cliff Richard show, and after releasing cover versions they went on to score their biggest hit in 1979 when I'm In The Mood made the top three.

Nolan went on to have a musical theatre career with appearances in shows such as Blood Brothers, Pump Boys And Dinettes and Prisoner Cell Block "H".

She was treated for breast cancer in 2006, the same illness which claimed her sister Bernie last year.