Kate will be seen as Tracy next month on the show, and in an interview with The Sun, Kate explained that being a full-time mum to her son Otis has left her nervous about a return to work.
She said, “When you’ve been at home with a baby you’re so used to spending time one-on-one that going back to work is really, really terrifying.
“As anyone who has had a baby and spent time at home knows, you lose your confidence a bit. I was so terrified at first.
“But it’s not new for me to be a nervous wreck, it’s just varying degrees. Even so, I’ve loved it more than I expected. It felt like a new job again.
“I thought I would go back straight away but I remember going to a meeting when Otis was just three months and breast milk leaking, and I just thought, ‘Oh my God, I’m just not ready’…
“Between a year and two years after I had Otis they kept asking. It was flattering.”
And while discussing the death of her co-star Maggie Jones – who played Tracy’s gran, Blanche Hunt – Kate said, “It’s really sad about Maggie. I had to not think about her when it was Blanche’s funeral because it would have been too hard to get through the day.
“But it was so difficult because a photo of Blanche was on the front of the coffin. So it was hard, but I really tried to separate the two things.
“Maggie was so dry and had such a naughty sense of humour. I was so shocked by the things she would say. She was just fun.
“You could never forget Maggie – no one could forget her – she had such spirit. And she was such a good actress as well.
“I used to buy her little scarves from Primark, really little cheap floral ones, but she used to like them.”
Kate will be back in the Street shortly, but will make full-time appearances as of December.