Shelley Appleton was the Head Care Worker at Stowey House in Series 3 of The Story of Tracy Beaker. She arrived as Jenny's replacement and the kids originally didn't like her, but eventually they became more lenient to her and accepted her.
Not much was revealed about Shelley's past. She did a father who had developed Alzimers and found it hard to let other people who knew what they were doing to look after him. Which showed how much she related to and sympathies about Jackie's situation with her grandad . It's unknown why Shelley left after the Tracy Beaker Movie of Me . But she was replaced by Sid Rooney .
In Series 5 Shelley made a brief return and the Temporary Head Care Worker at Elm Tree House. After Shelley's time was up, she started looking for a new Head Care Worker. Multiple Candidates were up for the job, but in the end Shelley chose Mike who the children all loved.