She also became concerned because she wasn’t able to ask the directors any questions that she had at the time.
The star previously played Sheila Grant in Channel 4 soap Brookside from 1982 to 1990, which she claimed was “totally different” behind-the-scenes than the experience she had at Corrie.
Sue divulged: “I didn’t know what to expect because it had been so long since I’d done it, and also I’d been in a soap, which was Brookie, but it was totally different, it was a shock, I have to say.
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“If I started talking on set, ‘You know when I’d been,’ and you’d see them looking at their watches.
“‘This is trouble, she’s trouble.’ No rehearsal, just run through the lines mostly.”
The former Brookside actress added to the Daily Star: “I think the other thing that freaked me out a little bit.
“Either you commit to that and have a very good life and make some very great work, or do you go for this dangerous life outside.”
A representative for Coronation Street told Express.co.uk: “Sue is a much admired actress and we loved having her as part of the Coronation Street family.”
Elsewhere, Sue recently received her coronavirus vaccine in Cheshire.