John Thomas "Dig" Diggle is a former bodyguard, former soldier and member of Team Arrow. John is the older brother of the late Andy Diggle, the husband of Lyla Michaels and the father of John "JJ" Diggle, Jr. and Sara Diggle. As a member of Oliver's team, John is his partner and plays a number of roles including field support, decoy and guidance to Oliver in times of doubt. John was known in the Suicide Squad under the code-name Freelancer. Later he took up a suit and was officially given the designation Spartan by Felicity.