ITV / Rex Features
The 40-year-old actress - who appeared as brash lesbian Hazel Bailey in the first four seasons of the now-axed glitzy ITV football drama - is to play ballsy cop DI Keeble in a number of episodes of the East-End soap.
A Walford source told DS: "It's no secret that there's a gun floating around Albert Square, but that doesn't mean she'll be around for the fallout of the gun shot."
They added: "Could there be something more sinister afoot?"
Newman will appear on screen from Monday, November 3.
Earlier this year, she made an appearance in ITV1's Rock Rivals as Bethany's (Holly Quin-Ankrah) pushy mother Lynette Hopkins.
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