The actress confessed that she would consider returning to the show if writers develop Toyah to reflect the age she would be now, having last appeared in Weatherfield in 2003.
"I suppose because it's been so long you could kind of reinvent that character if you want," Taylor told PA. "She's meant to have been in London for the last eight years, so you could paint in a back story of anything happening in those eight years.
"In a way you'd have to reinvent her because I felt most of my time on that show was playing a teenager. I'm 31 now - so automatically that changes things anyway. I'd never say never because I do really love the show."
Speaking of her very first day on the Street, she added: "I just remember I had scenes with Jane Danson, who obviously is back in it. She plays Leanne. I just remember we were in the first scene of the day and the last scene of the day, and in the middle of that we had about nine hours off.
"Normally when you get settled into a show with nine hours off you go: 'Is it all right if we nip out to the shops and have a bit of lunch?' But because it was our first day we sat in the green room for nine hours! We were just so happy to be there. It was so exciting."
Taylor leaves her Casualty role as Dr Ruth Winters on December 10.
She has admitted that she is still more known for Coronation Street than Casualty, despite leaving the soap over eight years ago.