High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Rachel Mason (née Amanda Fenshaw) is a fictional character in the BBC television drama series Waterloo Road. She is portrayed by Eva Pope. It was revealed in 2009 that Pope will exit the show during the fifth series. Rachel became headmistress of Waterloo Road in 3x07 following the resignation of Jack Rimmer. Initially appointed by the LEA as an Associate Headteacher, Rachel soon decided to remain at the school permanently, in the role as Headmistress. One of her first acts in office was to defuse an ongoing situation between two recently split couples: Donte and Chlo Charles, and Brett Aspinall and Mika Grainger. (Chlo had slept with Brett, the boyfriend of her sister Mika, and had since run away).