After meeting with wounded soldiers, before and after the filming of BAFTA nominated Kajaki, David has done skydives raising money for BLESMA (British, Limbless, Ex Servicemen) and is now a patron for the charity Help for Heroes 4x4 Rally.
Wrote and directed the Edinburgh Fringe smash-hit sell-out show The Hangover in 2009 to huge critical acclaim.
Won the BAFTA Scotland award for Best Film Actor in 2015.