Tanya Callard was Debbie Dingle's cellmate. Tanya first appears on the day Debbie goes to court to hear what she is to be prosecuted for. When Debbie returns, having been told she will be tried for murder, Tanya asks her what happened, and Debbie tells her to mind her own business. A few days later, Tanya discovers a mobile phone given to Debbie by her solicitor and she refuses to give it to Debbie and stamps on it.