They are on the list of 16 notable figures who will appear in the show when it returns to BBC One, along with actress Denise Black – who is soon to join the cast of Emmerdale – and comics Katy Brand and Shappi Khorsandi.
John Torode and Gregg Wallace will once again put the celebrities through their paces in six challenges over a two-day period which will decide who gets a place in the quarter-finals.
Tasks will include feeding the cast of Cirque De Soleil at The Royal Albert Hall as well as rugby union team Harlequins.
The line-up also features Les Dennis, John Thomson, Mercury Prize-winner Speech Debelle, Heidi Range of Sugababes fame, Janet Street Porter, TV presenter Miranda Krestovnikoff and Jo Wood, the ex-wife of Rolling Stone Ronnie.
And Celebrity MasterChef is completed by a trio of sportsmen – triple jumper Phillips Idowu, cricketer Matthew Hoggard and boxer Joe Calzaghe.
Those who reach the quarter final stage will have to impress past contestants who include 2010 champion Lisa Faulkner and 2011 winner, Phil Vickery.
Celebrity MasterChef executive producer, Carla-Maria Lawson, said: “In this series, the contestants’ enthusiasm in their pursuit of the MasterChef trophy is palpable, often inspiring and sometimes very very funny.”