|Portrayed by||Judith Barker|
|First Appearance||Series 1, Episode 1|
|Last Appearance||Series 1, Episode 8|
|Cause/Reason||Resigned For Personal Reasons|
Jack Rimmer quoted in S2 Ep 1 "She left me in the lurch."
Estelle Cooper is the School Secretary throughout series 1. She has a good working relationship with Jack Rimmer, and displays strong loyalty towards him. She resigns from her post between series 1 and 2, leaving Jack without a secretary at the start of a new term.
S1 EP 1 to Jack Rimmer- " I will be happy to work under you"