Charlotte has been at the forefront of the soap for several months as she has made John Stape's life hell following their involvement in Colin Fishwick's death.
Earlier this week, it appeared that Charlotte had been killed off after John furiously attacked her with a hammer, but last night's 50th anniversary live episode contained the surprise revelation that she still had a weak pulse.
Speaking to Digital Spy, Collinson commented: "I think that Becky Hindley has done an amazing job. They're always great parts to play, the bunny boilers, and Becky has really embraced that. I think she's just played it brilliantly.
"I think what she's done so brilliantly is make us feel Charlotte's pain. She isn't just a bunny boiler - she's a really lonely, heartbroken person. Colin Fishwick dying in front of her eyes was probably the most perversely exciting thing that's ever happened to her!
"She became desperate to hang onto the drama that came from that night. I think it's been great telly: you take people like John and Fiz - who are really loved characters - and then you do something this extraordinary to them. I think you just want to watch it!"
Coronation Street's 50th anniversary week concludes tonight at 7.30pm and 8.30pm on ITV1.
> Click here to read our full interview with Phil Collinson Get the Inside Soap magazine on your iPhone or iPad