Ruth Ostrower is an executive assistant supporting Michael MacMillan across both his business and philanthropic endeavours. Previously, she served as the executive assistant to Michael when he was the chairman and CEO of Alliance Atlantis. Prior to joining Alliance Atlantis (then Atlantis Communications), she worked for 12 years in the finance industry, primarily in Human Resources. She is the past president of the Toronto Kiwanis Music Festival, where she has volunteered for many years, and is also an active supporter of theatre and dance.