Our Story


Meet the board

Our board is made up of passionate, highly-skilled volunteers, who help ONE IN FIVE raise awareness and money to fund medical research, to find better treatments and cures for mental illnesses.

Gabrielle Sheehan


Gabrielle has been actively involved with ONE IN FIVE over the past seven years and became the Chairperson in 2015.

With over 20 years’ experience, she has held a number of senior marketing and management roles within leading multi-national companies including Bupa, ANZ, GSK Australia, Havas and Leo Burnett UK.

Gabrielle has actively contributed to not-for-profit and community organisations over the past 15 years and was a founding member of The Alfred Hospital's Life Support Committee.

She joined the ONE IN FIVE board in 2010 and has continued to champion the importance of clinical research into understanding mental illness to improve treatments and cures for those impacted.

Hayden Vowell


Hayden Vowell has worked across financial and strategic roles empowering businesses to grow. Hayden is a qualified chartered accountant and has been involved with ONE IN FIVE since 2017, and is passionate about ONE IN FIVE's cause and making a significant contribution to the financial acumen of the board. 

Hayden is the ONE IN FIVE treasurer and sits across all financial decisions. 

Kristen Altamura


Kristen Altamura is an experienced business development manager, and has worked with a plethora of charities before ONE IN FIVE, including the Hush Music Foundation, and Snobs Creek Estate Wine. 

Kristen is responsible for grants and funding. 

Samantha Reidy


Samantha Reidy has extensive experience across people and performance teams. Working to deliver human resources strategies that drive business improvements, she is a trusted advisor to senior leaders. Samantha has demonstrated ability in motivating and coaching employees and executives, with a strong focus on driving employee engagement and performance.

Joining the ONE IN FIVE board in 2019, Samantha is passionate about shaping the future of mental illness. She strongly believes we’ve only scratched the surface when it comes to understanding mental illness and wants to change that.

Samantha strives to better the lives of those living with mental illnesses, and believes increased funding into medical research is the key to understanding systemic causes and available treatments.


You too can make a difference, donate to ONE IN FIVE today.