'EastEnders' actress Kim Medcalf, who plays Sam Hunter in the soap, is the 2-1 favourite to win the second celebrity 'Fame Academy'.
Also in the running are 'Coronation Street' star Debra Stephenson, who plays Frankie Baldwin, and comedian Al Murray.
Hosted by Cat Deeley and Patrick Kielty, the competition, in aid of Comic Relief, launches on Saturday with a live final on 11 March.
DJ Edith Bowman and comedians Adrian Edmondson and Jenny Eclair are among the celebrities set to compete in the charity singing show
Other celebrities lined up to take part include TV presenters Nick Knowles and Reggie Yates and Jon Culshaw of 'Dead Ringers' fame.
Actor Christopher Colquhoun who played Simon in 'Casualty' and 'Monarch of the Glen's Dawn Steele will also take part.
Each of the contestants will face the public vote when they perform live every night from 2 March. The trio with the least votes face the prospect of eviction.
