Both Holland and Smith perceived Cheriton to be a "rung or two up from her working-class origins", but she was not posh either, which was perfect for the part of Debbie. They initially worried that Cheriton would have reservations about playing a person who was not immediately liked by everyone, but Cheriton liked the role so she was instantly hired.
Both Holland and Smith saw Cheriton as being somewhat above her humble beginnings, but she was not refined either, which suited her perfectly for the role of Debbie. They initially feared that Cheriton would have reservations about playing a character who wasn't universally liked, but Cheriton was drawn to the part so she was immediately hired.