Rat catcher

John Thomas Diggle, also known by his code names Freelancer (with the Suicide Squad) and Spartan (with Team Arrow), is a fictional character in The CW's Arrowverse franchise and Superman & Lois, first introduced in the 2012 pilot episode of the television series Arrow. The character was created for the series by Greg Berlanti, Marc Guggenheim, and Andrew Kreisberg. Diggle is portrayed by David Ramsey. Diggle is introduced as a military veteran and Oliver Queen's new bodyguard. Over time, his relationship with Oliver evolves and he becomes his best friend and confidante in his crusade as the Green Arrow, joining him as Spartan and for a while succeeds him as the Green Arrow.