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Our Therapists

Rebekkah

Rebekkah Williams, RP

 

Rebekkah Williams, RP, is a Registered Psychotherapist, Author, National Speaker and Trainer, Clinical Supervisor and Expressive Arts Therapist, specializing in the treatment of sexual trauma for over 38 years. Rebekkah is the Director of Nemesis Group, her
private practice, providing treatment of trauma for 22 years. She developed Trauma 2 Triumph, providing training and workshops across Canada on responding with dignity to sexual exploitation and human trafficking. Created a YouTube channel, Question
Without Shame
, with information and resources for those who have been sexually abused. Rebekkah has served the Neyaashiinigmiing First Nation for over 25 years as a
therapist, trainer and group facilitator. She is the author of numerous books, mental health articles, research papers and social awareness advertising. Speaker at mental health conferences, including Waypoint Research Institute, presenter at the Canadian Counselling and Psychotherapy Association National Conference in PEI 2024 and Halifax 2026, keynote speaker for the Ontario Provincial Human Trafficking Symposium, in cooperation with Victim Services of Peel. Rebekkah is currently developing her personal podcast: Prey: Growing Up With a Psychopath.

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Bonita Johnson deMatteis, RP
 

Bonita Johnson deMatteis is a Registered Psychotherapist and a Traumatic Incident

Reduction Facilitator and LSR Facilitator. She uses Narrative therapy and expressive art and play modalities that focus on the treatment of trauma. in practice for over thirty-one years.

 

Co-founder and Co-director of Nemesis Group, this was a perfect and creative realization for her skills as a former frontline crisis worker and sexual assault counsellor.The rise of internet exploitation, abuse, and other traumatic events are now approached in a respectful one on one format. Together with the past 20 years of Nemesis Group and her years in the VAW, (Violence Against Women) field, Bonita has 35 years in this practice.

 

Bonita’s undergrad was at Western University in psychology. She also holds a Certificate from Ryerson Poly Tech in Basic and Family Mediation, a Diploma with the National Guild of Hypnotists as a Certified Consulting Hypnotist and a a Diploma from Georgian College in Creative Design, on the Deans List.

 

Bonita is registered with the College of Registered Psychotherapists of Ontario and holds memberships in good standing with professional organizations specializing in trauma treatment.

 

Bonita is a nationally recognized visual artist, writer, designer and illustrator. An accomplished portrait artist, Bonita has also written and illustrated many children’s

books, two of which are autobiographical telling her experience of being a bi-racial child of the 60’s. “Going North” and “Threads: Piecing together the Underground Railroad.”

See more of her art here.
 

 

Her book “Lest We Forget”, was the recipient of the Ontario Museum Association Award

of Merit for her writing and design. Bonita’s design of The Black History Cairn has been

internationally recognized.

 

She was born in London Ontario and has lived in the Owen Sound area for the past 40

years. She is an honours graduate from Georgian Colleges Art and Design program and

a recipient of the Dean’s Award 1998.

 

Just for fun, she loves to ride horses and instruct fitness and dance classes!

Bonita
Kristen Seetahal
Kristen.jpg

Kristen Seetahal
 

Kristen Seetahal is a Registered Psychotherapist (Qualifying) and teacher (OCT), specializing in First Nations, Métis, and Inuit Studies and Special Education. Her focus is on helping children and adults heal from sexual abuse, violent crime, exploitation, abuse, and other traumatic events. Having been born and raised in the Grey-Bruce region, Kristen recognizes the urgency of expanding the region’s existence of safe and stigma-free spaces. Her therapeutic practices are neuroaffirming and 2SLGBTQ+ affirming, valuing people of all backgrounds, sexualities, and gender identities.

 

Kristen holds a Master’s Degree in Counselling Psychology, A Bachelor’s of Education, and a Bilingual Honours Bachelor’s of Arts. She has professional memberships with the College of Registered Psychotherapists of Ontario and the Ontario College of Teachers. She has completed additional certifications to support children and youth living with diagnoses of autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD). 

 

In addition to her therapeutic practice, Kristen loves to engage in outreach and advocacy work. In the Greater Toronto Area (GTA), she was involved in initiatives to raise awareness and support for people living with or at risk of HIV/AIDS. This included partnering with a GTA-based nurse practitioner to provide harm reduction, emergency counselling, and medical care to people involved in the street-based sex industry.  Locally, she co-facilitated school-based 2SLGBTQ+ youth groups, supported Safe N’ Sound in their 2024 planning/implementation of International Overdose Awareness Day events, and co-hosted a trauma-informed Yoga event for bereaved families to raise funds for Brightshores NICU.

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