Keith Chegwin is favourite to win the new series of Celebrity Big Brother ahead of Wednesday night’s launch show.
The veteran TV presenter, who started out as a child actor, was a regular on TV in the 1970s and 1980s, appearing on shows including Cheggers Plays Pop and Saturday Superstore.
Bookmaker William Hill made Cheggers 11-2 to win even though the line-up will not be officially unveiled until tonight’s show.
The company has also cut the odds on former Apprentice star Katie Hopkins to win to 12-1 after a large bet was placed.
Hill spokesman Rupert Adams said: “Inside 24 hours Katie has gone from our best result to our worst result – we might well have underestimated her chances.”
Also reported to be appearing are former Coronation Street star Ken Morley and soul singer Alexander O’Neal.
Celebrity Big Brother started life as a spin-off of the main show on Channel 4 before both were dropped and then picked up by rival broadcaster Channel 5.
Last year’s series, won by US actor Gary Busey, was the second most complained-about show of 2014 – only topped by complaints about the regular version of the show.