CEN COMMITTEE
Tom Butler
Chair
Qualifying as a Speech Therapist at UCL in 2011, Tom has been working in the area of voice disorders for over 10 years, and prior to that complex neuro rehab and head and neck cancer. Tom currently works at Guy's Hospital in London at the voice disorders service. He has a special interest in psychogenic voice disorders and development of specific vocal support for fitness instructors. Tom runs a monthly SLT-led voice clinic and has strong relationships with ENT laryngology, assessing and advising patients in the MDT voice clinics multiple times a week. Tom is also involved in case study and research projects.
Tom was previously membership secretary of the London Voice CEN from 2014-17.
Other experience and outreach: Tom was previously co-chair of the London Northwest NHS Trust LGBTQI+ network from 2017-19 and brought the trust to its first ever London Pride parade in 2019.
Kirsty Bui
Treasurer
Kirsty is a Highly Specialist Speech and Language Therapist and Voice Lead at Ashford and St Peter's Hospitals NHS Foundation Trust, managing patients on the voice caseload.
She graduated in 2011 from City University, London after which she worked in courts and then in paediatrics before discovering her passion for voice at a British Voice Association event. She then started working with adults across several London hospitals within a range of specialisms including stroke, acute, and voice.
In her spare time she enjoys singing and she is absolutely delighted to be joining the London Voice CEN.
Maria Garcia
Membership Secretary
Maria qualified as a Speech and Language Therapist in 2018, beginning her career in Early Years. She now works at the Royal National Ear Nose and Throat Hospital, treating both adult and paediatric voice patients, along with treating benign ENT dysphagia and upper airway caseloads.
She really enjoys running Voice Education Seminar sessions and working in the Speech and Language Therapy led Voice Clinic. In her spare time she enjoys outdoors, martial arts and baking.
Gemma Wotherspoon
Social Media Manager
Gemma is a Speech and Language Therapist who qualified from the University of Manchester in 2023. She has experience across community, acute, and outpatient settings, working predominantly with dysphagia and neurological caseloads. She currently works at the Royal National ENT Hospital as part of the specialist Voice and ENT team, supporting both adult and paediatric patients. Outside of work, Gemma enjoys hiking and exploring new places through travel.
Jackie Karlsson
Events Manager
Jackie is a Highly Specialist Speech and Language Therapist at the Royal National ENT Hospital (UCLH). She has worked with a voice caseload since qualifying, and also has experience working with combined voice, head and neck, and acute caseloads.
Jackie works primarily with an adult voice caseload in oupatient settings and voice-led clinic.
She qualified at University College London in 2021. She has a background in theoretical linguistics.



