Coronation Street fans were left stunned this week after an incredible revelation surfaced about one of the soap’s most beloved characters. Christine Mackie, the actress who has played Dr. Susan Gaddas since 2014, has actually walked the cobbles multiple times before — and in completely different roles!

As the friendly face of Rosamund Street Medical Centre, Dr. Gaddas has become a staple in Weatherfield life, often providing emotional support and critical diagnoses to the show’s residents. From helping Sinead Tinker (Katie McGlynn) during her heartbreaking cervical cancer journey to diagnosing Max Turner (Paddy Bever) with ADHD, Dr. Gaddas has touched the lives of many. More recently, she played a pivotal role supporting Abi Webster (Sally Carman) through her trauma following the tragic loss of Mason Radcliffe and the resurfacing grief over her son Seb Franklin (Harry Visinoni).

Fans have come to adore the calm, composed, and compassionate Dr. Gaddas — but few realized just how long Christine Mackie’s connection to Corrie truly runs. Longtime viewers were gobsmacked when a social media post unveiled that Mackie has actually portrayed four different roles across her Coronation Street career.

Mackie’s journey with the show began in 1989, where she played a nurse at the Victoria Hospital in Blackpool. She returned in 1992, stepping into the shoes of Chris Jones, a tutor at the School of Nursing. Then, in a surprising turn in 2010, Mackie was back again, this time dancing into the hearts of viewers as Bella, a salsa instructor who taught classes attended by Haley Cropper (Julie Hesmondhalgh) and Anna Windass (Debbie Rush).

It wasn’t until 2014 that Mackie would make her most memorable entrance, donning the stethoscope as the ever-reliable Dr. Susan Gaddas. Since then, she has become a comforting presence in Weatherfield, a character that viewers have come to rely on just as much as the residents themselves.

The fan reaction has been overwhelming. After a Coronation Street fan page posted side-by-side photos of Mackie’s previous characters, comments poured in. One fan exclaimed, “The one and only Dr Gaddas appeared on Corrie three times before! Did anyone else know this?” Others were equally shocked, with many admitting they had no idea. “No way, she looks so different,” another fan said, amazed by Mackie’s ability to transform seamlessly into each role.

Christine Mackie herself has spoken about the incredible affection audiences have for Dr. Gaddas. During an appearance on the Conversation Street podcast earlier this year, she shared her gratitude for the character’s unexpected cult following.

“I do know from my experience over the 10 years that people love Gaddas, and I’m deeply grateful that they do,” Mackie said. She explained that viewers feel nostalgic about Dr. Gaddas because she represents the kind of close, personal doctor-patient relationships that are becoming increasingly rare today. “At the same time she’s very much in the moment and very present when she’s doing everything,” Mackie added, describing Gaddas as emotionally connected and full of genuine affection for her patients.

With Coronation Street continuing to evolve, it’s clear that Mackie’s portrayal of Dr. Gaddas remains a bright spot for fans, providing a warm, steady hand through the ever-changing and often dramatic world of Weatherfield. But now, fans will be looking at her with new eyes — knowing that this isn’t her first time gracing the famous cobbles, but a triumphant return built on decades of hidden history.

Could this reveal lead to even bigger storylines for Dr. Gaddas in the future? As Corrie has taught us time and again, anything is possible on the streets of Weatherfield.