The full lineup for the new series of the ITV1 skating competition, which was unveiled today, includes Marsh's Coronation Street co-star Andy Whyment and Emmerdale actor Matthew Wolfenden. Wolfenden is engaged to co-star Charley Webb, the sister of Marsh's partner, ex-Hollyoaks actor Jamie Lomas.
Marsh wrote in her New magazine column: "I can't wait for Dancing on Ice to start this weekend. I'll be very torn, though, as Matthew Wolfenden and Andy Whyment are competing.
"Matthew's family - he's virtually my brother-in-law - and Andy is a close colleague. I'll have to support one one week and one the other!"
Commenting on their involvement, Marsh added: "Matthew was a dancer for years so I'm sure he'll be one to watch, and I think Andy will surprise people. The thought of Matthew in Lycra makes me giggle. I'll be going to the studio to show my support."
Dancing on Ice starts Sunday at 6.30pm on ITV1.
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