Our Team
Andy Harris BA (Hons.), PGCE, NPQH: Headteacher
Andy assumed the role of Headteacher in September 2024. Prior to this, he was Deputy Headteacher at St Clement Danes School and held a number of other key leadership positions in a range of contexts. He has previously led on developing positive learning cultures and improving student outcomes, as well as being a Designated Safeguarding Lead. Andy has developed his outward facing approach as a Quality Assurance Reviewer for Challenge Partners and previously as an Associate of the Chartered Institute of Personnel and Development. After graduating from King's College London, and before entering the teaching profession in 2010, Andy spent some time working in the defence and security sector
David Dwight: Deputy Headteacher, Teacher of Music and Designated Safeguarding Lead 
David started his career as a teacher of Music in 2008 following a career change from working in BBC radio. He has since held the role of interim curriculum leader of Performing Arts and, for eight years, as Head of Sixth Form at The Misbourne School in Buckinghamshire. David moved to Croxley Danes School in September 2021 joining the Senior Leadership Team to launch the Croxley Danes Sixth Form. His portfolio also includes careers, data protection, ICT and pupil premium. David also has responsibility for the pastoral life of the school and is the Designated Senior Person for Child Protection and Looked After Children.
Chanelle Olivier: Deputy Headteacher, Teacher of Maths
Chanelle joined Croxley Danes in September 2024 as Deputy Headteacher. Prior to this, Chanelle served as Deputy Headteacher at Northwood School for five year, where she focused on curriculum development, educational quality, data analysis, and assessment strategies to ensure students reach their fullest potential. She champions the principle of quality first teaching, advocating for equal opportunities for all students to thrive. Holding a Bachelor or Education and an Honours degree in Inclusion Education (SEND) from the University of Johannersburg, South Africa, Chanelle is committed to fostering an inclusive and supportive learning environment.
Additionally, Chanelle is passionate about developing future senior leaders and has facilitated the NPQSL to support aspiring leaders in their professional growth.
Helen Cox: Assistant Headteacher and Teacher of Geography
Helen started at Croxley Danes in September 2019 as the Humanities Faculty Coordinator. In September 2020 Helen was promoted to Head of Faculty. In April 2021 Helen was appointed as Assistant Headteacher and assumed the role in September 2021. Her portfolio includes continuing professional development of all staff, promoting extra-curricular programmes for students and developing links between the school and the Croxley Green community.
Shannon Walker: Assistant Headteacher and Deputy Designated Safeguarding Lead (Operational Safeguarding Lead)
Shannon began her career as a Science teacher at St Clement Danes School in 2016, achieving her MA in Education in 2017. She progressed her career, taking on the role of KS3 Science Coordinator in 2018 and assuming the responsibility of Head of Year 10/11 by 2020.
Shannon joined Croxley Danes school in September 2023 as Assistant Head Teacher with a focus on operational safeguarding leadership.
Cat Webb: Assistant Headteacher, Director of Sixth Form
Cat started her career in 2012, gaining QTS through the Graduate Teaching Programme. She developed her teaching career at Hertswood Academy, joining the pastoral team as Head of Learning and then progressing to join the SLT, taking on the role of Transition Coordinator.
Cat joined Croxley Danes in 2022 as Head of Key Stage 4 and has now taken on the role of Assistant Headteacher and Director of Sixth Form.
With a BA (hons) in Textile Design through the University of the Arts London, Cat also teaches all three specialisms within Technology.
