This article documents a two-year journey developing and implementing a teacher education programme that required preservice teachers and teachers, administrators, and students in six cooperating schools to address issues of diversity, multi-/transculturalisms, inclusion, anti-racism/anti-oppression and social justice. We describe approaches and analyse changing attitudes, commitment and activism among those who participated in this "Diversity" cohort initiative--a collaboration between the University of British Columbia's Faculty of Education and the Vancouver School Board. We profile the courage and commitment of those who began to see themselves as important allies and agents of change in Canada's most multicultural environment. We acknowledge the less successful aspects, and generate implications for teacher education partnerships that seek to embrace "critical" multicultural, inclusive, and social justice education.