Guest Stars Max MacMillan as Timothy Turner April Rae Hoang as May Tang Edward Shaw as Teddy Turner Frances Tomelty as Dulcie Greenhalgh Jason Hall as Arnold Greenhalgh Mark Tandy as Dr Houston Nikki Patel as Mrs Singh Tony O'Callaghan as Frank Jenkins Elizabeth Roberts as Clover Jenkins Charlotte Jaconelli as Mrs Pembridge Ninette Finch as Mildred Jones Rory Alexander as Jojo Harris Boadicea Ricketts as Kat Taylor