Karl is kicked out by Stella later this week after she discovers that his gambling problem has left them in serious debt, putting their future at The Rovers in jeopardy.
However, Michie told itv.com that Karl is clever enough to reclaim his feisty partner's affections.
Michie commented: "I don't think this is the end of Karl and Stella just yet. Karl might seem stupid, but he's not - he's a real operator. So he's not going to let Stella out of his life that easily.
"He'll find a way to get back, and he'll find a way to keep Sunita dangling on a string."
Sparks have been flying between Karl and Sunita (Shobna Gulati) in recent weeks, as they have comforted each other over their respective relationship problems.
"He has taken a shine to Sunita, mainly because he reckons she listens to him and Stella doesn't," Michie remarked. "Karl is a bit of a user, so if there's someone around that he can use for whatever purposes, he's inclined to get down that road."
Coronation Street airs Mondays, Thursdays and Fridays on ITV1.
> Coronation Street Michelle Collins tips Stella to stay with Karl
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