Brooke Kinsella, Charlie Dimmock for '71 Degrees North'
The ITV1 Arctic Circle reality show returns later this year with new hosts Paddy McGuinness and Charlotte Jackson.
Spandau Ballet's Martin Kemp, hairdresser Nicky Clarke, Rav Wilding and TV presenter Angellica Bell are among the other celebrities signed up for the series, according to The Sun.
Ex-GMTV star Richard Arnold and Sean Maguire are also competing in the endurance challenges.
Former Hollyoaks actor Marcus Patrick beat Gavin Henson in the final of last year's 71 Degrees North.
> Injury forces '71 Degrees North' substitute