Once upon a time 2x01 online dating
Mike makes his first appearance in the first episode of "The Story of Tracy Beaker"; he is a care worker at Stowey House, and has been for some time – he is already on good terms with Tracy Beaker (Dani Harmer), thinking she's a 'good kid on the whole'.
He leaves at the end of series 1 after an emergency call in another care home.
Mike returns in series 5 as Elm Tree House's new chef.
When Head Care Worker, Shelley Appelton (Nicola Reynolds), decides to leave Elm Tree House she holds interviews for possible head care workers, who none of the young people like, so they beg Mike to take up the role, which he does.
The character of Mike returns in "Tracy Beaker Returns", appearing in every episode of the show; it is implied that he never left Elm Tree House and continued to act as Head Care Worker.