Mark Allen is an environmental activist who has a particular interest in behavioural change, sustainable town planning and food ethics. He started the Holistic Activism movement in 2018 as a means of finding better ways to collaborate and work towards long-term behavioural and systemic change. Mark started Town Planning Rebellion in 2020 with the intention of bringing a renewed focus to land-use planning (and urban planning in particular) into the wider environmental movement. He is a qualified town planner with a keen interest in eco-psychology.

Mark Allen has been a guest on 2 episodes.