London 2012: Olympics people in numbers
18 April 2012 Last updated at 02:23 BST
Athletes take a starring role at the Olympic Games, but with 100 days to go until London 2012, we take a look at who else makes up the cast of thousands behind the sporting event of the year.
Source: Locog. Music: Andrew White (PRS) Music Candy
Design: Salim Qurashi. Production: Dominic Bailey, Michael Hirst, Christine Jeavans