Msgr. Stephen Hero was born on 19 December 1969 in Montréal, Québec. He carried out his philosophical studies at the seminary of Christ the King in Mission, British Columbia (1991-1994). He studied theology at the Saint Joseph Seminary in Edmonton (1994-1997), and subsequently at the Pontifical University of Saint Thomas Aquinas - Angelicum, Rome (1997-2000), where he was awarded a licentiate in spiritual theology. He was ordained a priest on 29 June 2000 for the metropolitan archdiocese of Edmonton. He has held the following roles: parish vicar of Saint Theresa in Edmonton and at the Holy Family parish in Saint Albert (2000-2002) and vocational director (2002-2003). He was awarded a licentiate in sacred liturgy at the Pontifical Athenaeum of Saint Anselm in Rome (2003-2005). In Canada, he was: formator (2005), vice rector (2010) and rector of the Saint Joseph Seminary (2012); since 2005, lecturer at the Newman Theological College of Edmonton, and from 2007 to 2015, collaborator as ecclesiastical judge at the Regional and Interdiocesan Tribunal of Alberta. In addition, he has served as: member of the Archdiocesan Committee for the Permanent Diaconate (2009-2017), member of the Archdiocesan Divine Worship Advisory Committee (since 2018) and Archbishop's Deputy Delegate for Responding to Allegations of Abuse (since 2017).