Agnes Tinker is the matriarch of the Tinker clan. The mother of Nancy and grandmother of Beth and Arlene, the family arrived at 5 Coronation Street in January 2015 to celebrate the upcoming wedding of Beth and her fiancé Kirk Sutherland. Upon seeing a shirtless Jason Grimshaw in the living room, trying to repair a leaking radiator as soon as they were invited inside; the women initially mistook him to be the groom-to-be and expressed stark disappointment when they were finally introduced when Kirk came back home.
After Kirk realised that he, Chesney Brown, Tyrone Dobbs and Craig Tinker all planned to attend the '80s themed wedding as The Blues Brothers, Kirk decided to dress up as Adam Ant instead and after returning to No.5 to collect his outfit he overheard Agnes, Nancy and Arlene putting him down for his meagre job as a packer at Underworld and poked fun at the way he spoke. Following the ceremony at Weatherfield Register Office, the couple held their reception at the Rovers and the family left soon afterwards.
Within a matter of weeks, Arlene's daughter Sinead was seriously injured in a minibus crash which left her hospitalised with severe spinal injuries and facing the prospect of being unable to walk again. Upon hearing the news, Agnes returned to witness Sinead's boyfriend Chesney involved in an altercation with Steve McDonald who was driving the minibus. She tried to calm Chesney down and after visiting Sinead in hospital she instructed Beth, Kirk and Chesney to start pulling their weight around the house as it was apparent that Sinead did the majority of the household chores.