PersonMark Heap11 credits in the catalogue: acting.On the wikisGreen Wing WikiActingBig Train1998Various RolesSpaced1999Brian ToppAbout a Boy2002Math TeacherGreen Wing2004Dr. Alan StathamCharlie and the Chocolate Factory2005Man with DogScoop2006M.C.Stardust2007TertiusLark Rise to Candleford2008Thomas BrownFriday Night Dinner2011JimThe World's End2013Publican 7The Magic Faraway Tree2026Mr Oom Boom Boom