Lorna introduces Monica & Zandra to "Denny & Shaz", however only Denny is seen and this is the only time "Shaz" is referred to until the real "Shaz Wylie" arrives in series 2.
A character called Shaz was mentioned but not seen in the first series. Shaz Wylie was introduced in the second series.
First appearance of Lara Cazalet as Zandra Plackett.
First appearance of Jane Lowe as Monica Lindsay.