Esther Rantzen, Robert Kilroy-Silk and former Blue singer Simon Webbe are among the ten contestants heading to the jungle for the eighth series of the reality show.
Joining them will be WAG Carly Zucker; tennis icon Martina Navratilova; TV presenter Dani Behr; ex-EastEnder Joe Swash, former Deputy Assistant Commissioner for the Metropolitan Police Brian Paddick; glamour model Nicola McLean and Heroes and Star Trek actor George Takei.
Speaking about her decision to take part in the programme, Rantzen said: "I have to face the worst, the result might be abject humiliation, the end of a career... I might be provoking a terrible response from those near and dear to me, who will never again be able to look me in the eyes because they'll so want to say I told you so."
Kilroy-Silk revealed that he expects to cause trouble in the jungle, saying: "My wife would say I'm difficult. My daughter would say I'm difficult. My son would say I'm difficult. So I assume I'm difficult."
Ant and Dec will return to host I'm A Celebrity... Get Me Out Of Here!, which kicks off this Sunday on ITV1.
> In Pictures: Meet the I'm A Celeb... contestants