Kim Petersen
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Liz Thompson
Liz Thompson has been with Calgary Academy since August 2012, and began her career as a Junior School Mathematics and Science teacher. Throughout her career at the school, she has had the pleasure of engaging with many learners as a member of the Grade 7-8 teams, and as a member of the Learning Team as the Numeracy Lead.
As the Junior School Assistant Principal, Liz is excited to get to know and work with our students and families, support the Junior School teachers and work within the school to foster a safe, caring, and inclusive learning community.
Sheryl Walters
Sheryl Walters joined Calgary Academy in August 2011 as a Junior School Mathematics and Science Teacher. She spent several years teaching in Junior School before joining the Learning Team as an Instructional Designer and Coach.
As the Senior School Assistant Principal, Sheryl is dedicated to co-leading the educational community at Calgary Academy, supporting the talented staff, and fostering a welcoming and inclusive learning environment for students.
Erin Ellis
Erin Ellis first joined Calgary Academy in the Physical Education department and later taught in both the Academy and Collegiate programs. She has served as the Junior High Assistant Principal and is now the Director of Learning. Erin works collaboratively with the Calgary Academy community to foster an exceptional school experience for all students.
Dr. Greg Bass
Dr. Bass has been an Alberta educator for almost 30 years. He has served the education community as a teacher, principal, superintendent and as an Alberta Deputy Minister of Education. Most recently, he has worked as a consultant assisting organizations in achieving their educational goals.
Working alongside a team of talented and dedicated professionals, Dr. Bass will focus on achieving Calgary Academy’s mission to help our students realize their full academic and social potential, achieve independence as learners and experience success, and preparing them for their future – not our past, while changing the lives of both students and their families.
Dr. Timothy Carlson
An educator for more than 20 years, Dr. Carlson passionately believes in putting his students’ needs first. As Principal, he leads the school’s daily operations, develops staff, and works to ensure the successful implementation of the Strategic Plan. A long-serving CA staff member, Dr. Carlson has worked at every leadership level in the school and enjoys connecting with students and families to support the learning of all. Dr. Carlson earned his Masters in Curriculum, teaching, and learning from the University of Calgary. In 2025, he earned his Doctor of Education (EdD) in K-12 Senior Leadership from the University of Calgary.