Our Team

The Bamboo Centre counselling team is an interdisciplinary group of caring professionals, trained to the Masters or PhD level and ready to serve you. Clients are matched with counsellors based on availability, training and expertise to meet your needs.


Kristina Marshall

M.Div (Counselling)

Kristina has a master’s degree in Marriage and Family Therapy and works with individuals, couples and families.  She has been working as a counsellor in Cambodia since 2008 and has worked mainly with expatriates as well as conducted trainings, consultancies and teaching. Kristina’s approach is client centered and so she tailors her approach specifically for each individual or couple.

Kristina is trained in EMDR and has completed a Creative Arts Therapy course. Kristina speaks English and Finnish. She is a member of the American Association of Marriage and Family Therapists.

Dr. Derek Mitchell

DClinPsy, PgDip CBT, MA hons (Clinical Psychology)

Derek is a British trained clinical psychologist with 16 years experience of working in mental health. He works with adults and adolescents with a broad range of mental health problems including depression and anxiety disorders and with people living with the after-effects of traumatic experiences (including all forms of abuse and neglect) that occurred in childhood or later in life. He is also able to offer help with, grief and other difficult life transitions as well as relationship problems working either with couples or individually.

In addition to a comprehensive foundation in clinical psychology which includes coverage of all the main approaches to therapy he has postgraduate training in Cognitive Behaviour Therapy (CBT) and Mindfulness Based Cognitive Therapy (MBCT). He believes that while specific forms of therapy are generally better for some problems (e.g. CBT for anxiety disorders such as OCD), he draws upon his diverse experience and training to provide a therapy that is tailored to the needs of the individual.

Rachel Sims

M.Ed. (Clinical Mental Health & Couples, Marriage & Family Counseling)

Rachel has a master’s degree in counseling from the College of William & Mary in the United States, and works with individuals, couples, and families. She is a National Certified Counselor (NCC) in the USA and is a Resident in Counseling pursuing licensure with the Virginia Board of Counseling. She has worked with children and individuals experiencing grief and loss; has assisted families and couples with transitions, communication, and connection; and has provided intensive therapeutic day treatment therapy for children and adolescents with a variety of clinical diagnoses and histories of trauma.

Rachel uses an integrative approach and adjusts therapy to the individual, according to their reasons for seeking help. While she uses a variety of frameworks for this, she bases her approach on connection, exploring relationships, self-narratives, finding meaning, and the ways emotions and thoughts inform behavior (integrating Person-Centered, Narrative, Existential, Trauma-Informed, Cognitive Behavioral therapy approaches and Structural and Emotion-Focused family therapies). She hopes to provide a safe space for you to identify and explore unproductive patterns of thinking and behavior and achieve meaningful change.

Serey Samchet, MA

(Clinical Psychology)

Samchet is a Cambodian clinical psychologist, arts therapist, EMDR therapist, and professional trainer in mental health. She did her MA in Clinical Psychology in Singapore and has also trained in Advance Courses in arts therapy and EMDR therapy.  She has been supervised for around 3 years in Cambodia, Thailand, and Hong Kong. She has experience working with traumatised children and adults and delivering training on topics such as trauma, vicarious trauma, self-care, stress management, and counselling skills.

In addition to her experiences in psychotherapy and training, she has experience of delivering individual and peer-supervision to the care-givers, counsellors, and social workers who are working directly or indirectly with the traumatised clients who have suffered sexual abuse, domestic violence, have HIV or disabilities.

The Bamboo Centre