Our Executive Team


Dr. Cathy Kezelman AM

Dr. Cathy Kezelman AM is a medical practitioner, President of Blue Knot Foundation, Deputy Chair of National Centre for Action on Child Sexual Abuse and has a lived and living experience of complex trauma. Cathy is a respected thought and transformational not-for-profit leader, an innovative strategic thinker and inspirational people manager, informed by strong governance and ethical decision-making principles.

She has been a driving force within Blue Knot, previously ASCA, for over 2 decades, spearheading the growth and maturity of a financially sustainable, accountable and credible organisation respected by government and diverse stakeholders which delivers on its purpose daily. She has held a number of board and key representative roles within the mental health and related sectors, all focussed on the healing and recovery of people with the lived and living experience of complex trauma. Cathy is an authority in the field, co-author of a range of seminal Blue Knot publications and guidelines, and strong communicator as a national advocate for trauma-informed transformational change and informed responsiveness to people experiencing the impacts of complex trauma.

On Australia Day 2015 Cathy was awarded an AM “for significant service to community health as a supporter and advocate for survivors of child abuse”.

Dr Cathy Kezelman

Deputy CEO

Belinda Johnson

Belinda Johnson

Belinda Johnson is an experienced Accountant, Deputy CEO of the Blue Knot Foundation, a Director of the National Centre for Action on Child Sexual Abuse and has lived and living experience of Complex Trauma. Belinda’s leadership extends beyond financial stewardship bringing together her financial management with the commitment to making a positive impact in the community. Belinda has over 30 years of experience in finance and business and her professional journey is marked by a deep understanding of corporate governance, business and finance management and audit and risk management.

Belinda’s career has also been enriched by her expertise in technology solutions, which she applies to drive innovation and efficiency in her financial and operational management strategies.

Executive Manager

Tamara O'Sullivan

Tamara O’Sullivan has a background in psychotherapy and leadership and has worked in the human services sector for 25 years in a variety of roles, both in government and non-government services. Leading teams in child protection work; out of home care – supporting children, adolescents, and their carers; specialised disability support programs; adoption services; adolescent work in family preservation, supported independent living and leaving care/after care programs.

She has led the scale up of a state-wide Centre based therapeutic restoration program working with parents and their children to bring them home safely; funded under Australia’s first Social Benefit Bond.

Tamara leads Blue Knot’s professional training and services arm with a strong focus on trauma responsive practice, creating safety in organisations, staff wellbeing and utilising the principles of secure base leadership.

Tamara O'Sullivan

Please click the button below to go back to Our People

Our People