Gary Goldsmith, an uncle of Catherine, Princess of Wales, has entered the Celebrity Big Brother house.
In his pre-filmed introduction video, he said it is the one show he had previously said he would “never do”.
The series on ITV – which follows a six-year Celebrity Big Brother hiatus – has also reunited X Factor’s Sharon Osbourne and Louis Walsh.
The former TV judges have already been tasked with rating their fellow contestants from a special ‘lair’.
Strictly’s Nikita Kuzmin and Love Island’s Ekin-Su Cülcüloğlu are also among this year’s contestants.
The series started on Monday and is hosted by AJ Odudu and Will Best.
The full line-up has not yet been confirmed by ITV.