Coronation Street's Jenny Bradley played by Sally Ann Matthews. Matthew's character Jenny returned for four months from 18 February 2015 after meeting Kevin Webster (Michael Le Vell) through internet dating, and they begin a relationship. She is seen to develop an obsession with his son Jack (Jaxon and Maddox Beswick), which culminates in Jenny abducting him before being found in Hull, where she is arrested by police. Jenny was also indirectly responsible for the death of Maddie Heath (Amy James-Kelly) Sophie Webster's former girlfriend, when she found out about her evil scheme. Jenny made a return in January 2016, eventually later sparking romance with Johnny Connor (Richard Hawley) much to the dismay & anger of Connor's son Aiden Connor (Shayne Ward).
(Note - not sure if I or another member already done the one below)
Coronation Street's Gwen Taylor played evil rapist Frank Foster's mother Anne Foster from 4th September 2011 - 19th March 2012.
Coronation Street's Lauren played by Shannon Flynn, made her first screen appearance on 4 March 2016. Lauren and Shelley (Natalie Davies) bullied Bethany Platt (Lucy Fallon) at school, along with some others. Over the next few episodes, Lauren, alongside Shelly and a few others make Bethany's life a living hell during her school life and outside of school. They hassle, bullied, mock and abuse Bethany Platt (Lucy Fallon) at school. Lauren makes remarks about Bethany and her mother Sarah Platt (Tina O'Brien) as well as pulling her hair.
Coronation Street's Shelley played by Natalie Davies from 4th March 2016 - 4th July 2016. Shelley was one of Lauren's best friends and second chief tormentor to Bethany Platt, often siding with Lauren into bulling and mocking Bethany.
Coronation Street's Lisa Moore played evil cow Lauren's Mum from 9th March 2016 - 7th September 2016. When Sarah Platt (Tina O'Brien) discovers that her daughter Bethany Platt (Lucy Fallon) has been bullied, she visits Lauren's (Shannon Flynn) home to confront her. Sarah warns Lauren's mother to keep Lauren away from Bethany. She and Lauren later appear at the Platt household, demanding justice when Bethany's uncle, Nick Tilsley (Ben Price), throws Lauren's schoolbag into the road. She later supports Lauren at a school meeting between her and Bethany, who is supported by her mum, but after getting into a vicious argument with Sarah, Bethany's mum, insulting both of them, it results in both Bethany and Lauren being suspended from Weatherfield High.
Emmerdale's Charity Dingle played by Emma Atkins. She first made her appearance on 30th March 2000.