Joss Garman
The grandson of an airline pilot, now a London University politics student. Co-founder of Plane Stupid, which has taken peaceful direct action against one airport and occupied BAA offices

Leo Murray
Co-founder of Plane Stupid. Grandson of the late Lord Greenwood, a Wilson-era cabinet member who introduced much of Britain's first clean air and river legislation

John Stewart
Chair of Hacan ClearSkies, Heathrow watchdog group with 25,000 members. Named UK campaigner of the year in 2005. The group has marched through central London to highlight its concerns about the airport