Administration Team
At Dianella Secondary College, our Senior Leadership Team is dedicated to fostering a supportive, inclusive, and high-achieving college community. Comprising experienced and passionate educators, our leaders work collaboratively to drive the college’s vision, ensuring every student has the opportunity to thrive. They are committed to promoting excellence in teaching, student well-being, and creating an environment where both staff and students are encouraged to reach their full potential. Meet the team behind our college’s success and discover their commitment to shaping the future of our students.

Debra Unwin | Principal

Melissa Grey | Deputy Principal – Lower College

Kasun Tennakoon | Deputy Principal – Upper College

Sherrie Giglia | Manager Corporate Services

Benjamin Retamal | Student Central Coordinator – Upper College

Courtney Peoples | Student Central Coordinator – Lower College

Donna Christophers | Learning Support Coordinator

Jimmy McPhail | Head of Learning Area – Health & Physical Education / The Arts

Kathryn Salisbury | Head of Learning Area – Humanities

Anthony Williams | Head of Learning Area – Science / Mathematics
