The 'Pure and Simple' group were formed on 2001 reality series Popstars, but split in late 2002, just months after Marsh had quit.
Now starring as Michelle Connor in Coronation Street, Marsh backed former bandmate Myleene Klass's comments that a reunion would not happen.
"A journalist recently asked my friend and former bandmate Myleene Klass if she would
consider a Steps-style reunion for Hear'Say," the actress wrote in her New magazine column. "Myleene said, 'Not a chance in hell. It was hard enough the first time around, with us all arguing and bitching'. I feel exactly the same!"
She continued: "We're all doing well in our individual fields, so there's just no need to go back there. And, let's face it, we didn't have enough material for us to do a greatest hits tour!"
In her autobiography released earlier this year, Marsh recalled how she had fought with Klass during their time in the band. However, she revealed that the two had rebuilt their relationship following the death of Marsh's son Archie in 2009.
"Myleene really was there for me. She helped me choose the music for Archie's funeral and sent the most beautiful bouquet of flowers to the crematorium," she said. "We have both grown up now that we have children of our own. Life is too short to hold grudges and what happened back then isn't anyone's fault. I am determined not to let anything or anyone come between us again."
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