A former detective who was involved in the investigation into serial sex offender Jimmy Savile is one of six new contestants who have entered the Big Brother house.
Ex-police officer Daniel Neal joined the Channel 5 show a day after the Met warned the broadcaster of the dangers of putting him on screen.
Mr Neal was the second contestant to go into the house on Friday and in his introduction video he said his son was his greatest achievement in life.
He said he went from a "90p a pint lager lout" to being a father, and recalled one occasion when he was "locked in the pub in his pants" due to drinking from three o'clock in the afternoon. He said: "My mum is a bit worried if you ply me with lots of alcohol that I might embarrass her."
Mr Neal told host Emma Willis that he was "unemployed now" and said he needed a "change". He said: "I'd done ten and a half years in the police and I've worked really hard and achieved a lot," and added: "I just need a change. I wanted to explore the creative side of my personality."
Scotland Yard contacted the station after details first emerged about Mr Neal's previous career and his work on Operation Yewtree, the investigation into Savile. Mr Neal told the Daily Star he thought his appearance might "cause a stir" within the police, but did not believe it would shame the service.
The other new housemates include a boxer, a glamour model and mother and daughter Jackie and Charlie Travers.
They joined Thursday night's entrants who include a heavily-tattooed glamour model and a woman who runs a "gold-digger" website - unaware an actor has joined them to create mayhem. Michael Dylan, 29, has told housemates he is a postman from County Cork in Ireland, but is really an actor recruited "spin a web of secrets and lies".
Socialite Gina Rio, 24, from central London was the first housemate to enter the house on Friday and described herself as a "lady of leisure". Glamour model Hazel O'Sullivan, 24, from Dublin, Ireland, followed soon after.
Professional middleweight boxer Daley Ojuederie, 28, from Notting Hill, London, was the next contestant to go into the house and was followed by the mother and daughter duo - 59 and 26-years-old respectively - who were the final housemates to go into the house.