Jamie MacPherson ’99 joined the faculty in 2009 and teaches Health and Physical Education and Language Arts in the Middle School. A graduate of St. Andrew’s College from the Class of 1999, Jamie earned a BA (Hons.) from Acadia University and a GDE from the University of Auckland in New Zealand. Before returning to SAC, he taught history at Rothesay Netherwood School in New Brunswick and history and physical education at Emily Carr Secondary School in Vaughan. Jamie coaches the 1st Golf team and U14 Hockey. 

Lucas Madill joined St. Andrew's College in September 2015 as an English and social sciences teacher in the Upper School. Lucas has a master's of science in Exercise & Sport Science (Sport Psychology) and a B.Ed. from the University of New Brunswick (UNB), where he won the Lieutenant Governor's silver medal for education. Lucas also holds a B.Ed in Kinesiology from McGill University. Lucas played hockey at McGill and UNB, and he was an academic-all Canadian at both schools. After his playing career, Lucas began coaching at UNB, where he won a USport National Championship as an assistant coach of the men's hockey team. Lucas is a certified member of the Canadian Sport Psychology Association (CSPA), and since 2017, he has worked for Hockey Canada as a mental performance coach for the National Under 17 and Under 18 programs. In 2018 he helped Canada's U18 team win a gold medal at the Hlinka Gretzky World Championship in Edmonton, and the following year helped the team to a silver medal in Breclav, Czech Republic. He currently lives with his wife, Christine, and their identical twins, Abbie and Marlie, in Stouffville.

Sean Maillet joined St. Andrew's in August 2017 as a Digital Maketing Specialist. He is graudate of the College of Sports Media in Toronto with a diploma in broadcast journalism. Sean previously worked with FNTSY Sports Network. 

David Manning joined the faculty in 2006, having previously taught with the Eastern School District and St. Bonaventure’s College in St. John’s,N.L. David earned a BA from Colby College in Maine and a B.Ed. and Technology Education Diploma from Memorial University of Newfoundland, and has also had experience as a Youth Care Worker for the St. Francis Foundation, an organization dedicated to the development and growth of troubled teenagers. He has his master’s degree (M.Ed) in Educational Leadership. David teaches courses in Canadian civics, health and physical education, and computer science in the Upper School. He coaches 1st Soccer and 1st Hockey, and lives on campus with his wife, Nicole, daughter, Libby, and son, Levi.

Tanya Weedon joined the University Counselling team at St. Andrew's College in 2012. Prior to working at SAC, Tanya worked in Admissions at Mount Allison University and in Residence & Student Life at Victoria University in the University of Toronto. In her role as Associate Head of University Counselling, Tanya will work closely with grade 11 and 12 students interested in applying to university within Ontario and Canada, and is looking forward to working with all Upper School students as they plan for their future beyond St. Andrew's College.

Jim McGillivray is one of the most successful and prolific Canadian competitive pipers in history and has taught bagpiping at St. Andrew's since 1998. He holds a BA (Hons.) from Wilfrid Laurier University. A renowned and respected piper, pipe teacher, and authority worldwide, he takes great pride in the performing standard of the Pipes & Drums and its pipers and in knowing students leave St. Andrew's with a lifetime hobby. Jim served as Director of the Pipes & Drums for 22 years before stepping back to a part-time role in the music faculty in the fall of 2019. Jim lives in Aurora and is the father of two adult children.

Joel Morrissey joined the faculty of St. Andrew's College in 2011 as a teacher in the Math Department. In 2012, he became a teacher in the Science Department. Joel earned his Bachelor of Science from the University of Ottawa in chemistry and biochemistry and earned his B. Ed. from Trent University in 2011. An avid sports fan, Joel continues to play hockey throughout the year. Joel is a coach for Varsity AAA Hockey and JV Lacrosse. Joel and his wife, Hannah, and their daughters, Evelyn and Olivia, live in Newmarket.