Mark Isherwood was first elected as an Assembly Member for North Wales in 2003, before being re-elected in 2007 and 2011. 

He is the Current Shadow Cabinet Secretary for Communities, Europe, and North Wales Growth Deal. He is also Chair of Assembly Cross Party Groups on Autism, Neurological Conditions, Hospices and Palliative Care, Funerals and Bereavement and Fuel Poverty. Co-Chair of Assembly Cross Party Group on Disability. 

Mark lives in Flintshire with wife Hilary. They have six children and one grandchild. 

A former Treuddyn Community Councillor, School Governor (and Chair) of Ysgol Parc y Llan and voluntary Board Member of Venture Housing Association. Mark is a former Building Society Area Manager in North Wales.