Meet the Leadership Team



Donna Moffatt is a director of Matrix SDT and has been part of the organisation since 1999. She began her career as a Social Worker, and has worked in mental health in both the statutory and voluntary sectors. She has been an independent advocate for over 15 years, and holds both the National Advocacy and the IMHA qualifications. As well as director duties, Donna practices as an IMHA in inpatient units across Surrey, talking a lead working with clients who present with complex issues.



Tony Roddis is the founder & a director of Matrix SDT. His background includes work with adolescents with behavioural & emotional difficulties, mental health & the homeless, counselling & psychotherapy. He has developed mental health services across the UK & the European Union advising emerging European democracies on community mental health systems & human rights. He has addressed two World Mental Health Conferences on mental health issues and provides supervision support for Matrix employees.



Ian Grimwood is a director of Matrix SDT. He is a Physics graduate from Imperial College and began working in mental health over 25 years ago. He has mostly been an advocate, working with multiple client groups. He is passionate about ensuring that people’s voices are heard in decisions that affect their lives. As well as line manging advocates, he provides contract management and practices as an IMCA in Slough (including DoLS, RPR and LF) as well as Care Act Advocacy in Surrey prisons.

Meet our Advocates

Alessandrina Element joined Matrix in January 2018, and works as an IMHA / Care Act Advocate at Farnham Road Hospital and the Abraham Crowley Unit. She worked as a Recovery Facilitator in the field of substance misuse and is currently working towards a diploma in substance misuse and complex needs. She has volunteered for Victim Support and is passionate about helping the disadvantaged have their voices heard. When she's not at work she loves cooking, reading and travelling to Italy.
Ben Roddis works as an IMCA in Slough and as an IMHA at Farnham Road Hospital as well as St Magnus Hospital in Haselmere and Sturt House in Walton. Furthermore I practice as a Relevant Persons Representative (RPR) in Slough. I have been working with Matrix Advocacy for approximately three years and over that period have developed a professional interest in Capacity Law and Serious Medical Treatments.
Carling Clinton joined Matrix in July 2018 and is passionate about working in Mental Health. Carling holds a BA (Hons) in Psychology with Criminology due to an interest in becoming a Forensic Psychologist however through work experience in Mental Health high support units, she realised that those dealing with mental health issues rarely understand their rights or have their voice heard. Being an Advocate allows her to help individuals retain some of their power.
Charlotte joined Matrix in January 2020 and works as an RPR/IMHA across Surrey.
Charlotte graduated with a BA Hons in Therapeutic Psychology and works in private practice with issues ranging from depression and anxiety to couples counselling. Charlotte is studying for a master diploma in Clinical Sexology and is BACP and COSRT registered. She has taught Forensic Psychology.
Charlotte is dedicated to ensuring her clients' voices are heard and believes in empowering people to empower themselves.
Danielle Stewart worked in adult social care and charity settings for over 20 years in a variety of roles and settings, before she was given the opportunity of working as an IMHA at Matrix. Previously, she supported people with learning and physical disabilities to find and secure employment. This led to her co-ordinating a successful project teaching beauty skills in a salon setting to students who could gain a national qualification on completion.
Deborah Robinson joined Matrix in May 2017 but has been an Independent Advocate for 20 years, starting in Cheshire as a Mental Health Advocate & Citizen Advocacy Co-ordinator. Deborah has a degree in Health & Social Sciences, the National Advocacy IMHA & IMCA Qualification and is a qualified Life Coach. She has extensive experience of working with people with mental health problems and learning disabilities both in hospital settings and in the community, and practices in settings across Surrey.
Dipak Kanabar has been with Matrix since August 2016. He is part of the team providing IMHA services in Farnham Road Hospital, the Abraham Cowley Unit (St Peters), and Prospect Park Hospital. He also supports clients in the community in Surrey. He is a lifelong human rights advocate, spending six years volunteering with Amnesty International, and taking various committee positions at university. Before Matrix he worked in a supported living home in North-West London and taught Engish in Austria.
Katie joined Matrix in December 2019 and works as an IMHA and RPR. She has a BSc hons in Psychology with Neuroscience and throughout her degree discovered her passion for mental health work. She is dedicated to helping others and ensuring everyone’s voices are heard. She also volunteers in a local school and traumatic brain injury clinic. Outside of work Katie loves travelling, reading and music.
Louise Clarke joined Matrix in June 2019 as an RPR and Care Act Advocate, working across Surrey. Louise has many years experience as an advocate, both in a non-instructed and instructed capacity. She has experience of NHS complaints advocacy, self-advocacy and support planning. She is passionate about her work and strives to achieve a person-centred approach with the client placed at the fore. Outside of work, Louise enjoys yoga, cooking, music, spending time with her energetic Springer Spaniel.
Mandy Malloy joined Matrix in July 2018. Having completed her BA (Hons) in Criminology in 2014, she worked for the probation service where she gained an understanding of the impact of mental health issues on all areas of life. She moved to co-run the Complex Needs Domestic Abuse team, a Thames Valley Police pilot project with Berkshire Women’s Aid. Here she gained experience in advocacy. She enjoys helping clients have their voice heard.
Nina Dilaudo joined Matrix in July 2018 having worked within the field of substance misuse for over 10 years. She worked as a CARAT/Recovery Facilitator in a female high security prison for eight years then in a community drug and alcohol team as a Young Person's Recovery Support worker. Nina has a BSc in Psychology and an NVQ in Substance Misuse and has worked within respite and community support projects. In my free time she volunteers with an animal sanctuary.
Pam joined Matrix in April 2017 as an IMHA in Surrey. She works in Langley Green Hospital, Farmfield Hospital & Shrewsbury Court as well as in the community providing Independent Care Act Advocacy. She previously worked for Kingston Advocacy Group (KAG) & continues to work with SEAP running a self-advocacy user group for children & young adults with disabilities. She worked for many years in social services & the NHS managing residential & day services for people with learning disabilities.
Priscilla Chandro joined Matrix in June 2019 as an RPR in Surrey. Her background is corporate, but she switched careers and was a Field Supervisor for an independent care company. She spent the past 10+ years as a voluntary Patient and Public Engagement Rep for organisations within the health sector. She was an elected governor for the South East Coast Ambulance Service and helped set up the Inclusive Hub Advisory Group. She has been an inspector for the CQC and sits on the SE Clinical Senate.
Sam Mould joined Matrix in April 2018 as an IMCA & RPR in the community across Surrey. Sam has worked with children and adults with learning and physical disabilities in SEN units, supported living and training settings. Sam has supported adults in a community café, teaching life skills with to aid progression into paid work. Sam has experience working with adults with mental health issues and has supported carers looking after their loved ones. Sam is studying Forensic Psychology.
Shari Bulmer joined Matrix in May 2020, working in Surrey & Slough as an IMCA/RPR. She qualified in 2018 and has worked in complex care and learning disabilities for over 10 years providing support to clients with capacity issues and complex needs including dementia. Previously she was an NHS Complaints advocate for SDPP, also facilitating self-help advocacy groups for LD adults in the community. Shari is passionate about placing clients heart of any decision making process.
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Who are Matrix SDT?

Excellence in mental health advocacy services across the

South East of England

Matrix Service Development & Training Ltd. was founded in 1999 by Tony Roddis and Donna Moffat, joined by Ian Grimwood. Between them the three directors have over 60 years experience working in mental health.

Matrix provides high quality mental health advocacy services across Surrey and Berkshire for NHS trusts and independent mental health services.


Matrix provides advocacy services at a range of hospital sites and in the community. This independent service offers professional support to client groups such as adults with mental health problems, learning disabilities, drug issues, and older people with mental health problems in in-patient and community contexts.

Matrix is a not-for-profit company limited by guarantee.


Click on each photo to learn more about our Advocates.

01256 772104

6 Winchester Street, Overton, Hampshire. RG25 3HS


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