Published Wednesday, 21 May 2014
Michelle Keegan chats to This Morning. (© Rex Features)
Tina is set to be killed off next week with Peter, Carla, Tracy and Rob all potential suspects. The identity of the murderer will be revealed on Tuesday, when Tina meets a grisly end.
But despite being immediately questioned as to 'who dunnit', Michelle refused to reveal the huge secret.
"I have known from day one (who kills Tina), but I haven't said anything to anyone," she revealed.
"If anyone asks me I just say: 'No, I don't know!'"
The actress also admitted that her fiancé, reality TV star Mark Wright, also knows who the killer is as he was on the Coronation Street set on the day the climactic scene was filmed.
"He has been really good though and not told anyone," she said.
After playing feisty barmaid Tina for over six years, Michelle made the decision to leave the soap, prompting the huge storyline.
She explained: "I started thinking about leaving two years ago and Katherine Kelly, who played Becky, she said to me: "You will know when it's the right time."
"I was thinking about leaving a year ago, then I thought: "I'll do one more year" so then it was just a natural thing really."
The Corrie cast spoke to This Morning ahead of the British Soap Awards this weekend, where Michelle is currently the reigning champ for the coveted sexiest female award and is also nominated in the category for 2014.
Ben Price, who plays Nick Tilsely, is nominated for the spectacular scene of the year award for his part in the car crash which saw his character deal with a severe head injury.
Viewers have watched his marriage to Leanne crumble as a result of his violent outbursts, as he struggles to deal with the aftermath of the crash.
He said: "When I did all the research about head injury and what it is like afterwards, people said there are stages. So when you recover from the operation, that's one stage, but what you will be like then on can be very, very different.
"It's very, very hard for a partner. (Nick) is not the guy (he) was.
"I can have a stand up row now, whereas before I think he would have been careful. I can have an instant dislike to someone or confusion."
Also nominated this year is Amy Kelly in the best newcomer category.
Her character Maddie caused a stir for the Webster household as she got closer to Sophie and struggled to deal with being part of the loving family.
"She has been in the habit of being such a lone wolf and fending for herself and looking after her little brother," said Amy.
"I think to then have somebody care about her and want to calm her down, she is getting her defences up."
Coronation Street will compete against Emmerdale, EastEnders, Hollyoaks and Doctors for the best soap award at this weekend's ceremony, hosted by Phillip Schofield.
© UTV News