Barlow, who played Rae Wilson in the Channel 4 teen soap, apparently impressed at the Blind Auditions stage of the BBC talent show.
"Alice has a fantastic voice and certainly looks like a popstar," a source told fansite Soap Squawk.
In 2008, Barlow performed at a local talent show judged by X Factor's Louis Walsh. After covering Alicia Keys's 'If I Ain't Got You', Walsh described her as a "natural talent" and compared her to a "little Lulu".
Watch Alice Barlow singing at 'Stobart Factor':
It was reported earlier this week that Olympic athlete Tasha Danvers is also among this year's Voice UK acts.
The Voice UK will return next month with hosts Holly Willoughby and Reggie Yates and coaches will.i.am, Jessie J, Sir Tom Jones and Danny O'Donoghue.