"We try to be very consistent with our characterization," executive producer Marc Guggenheim told Entertainment Weekly. "I don't think Diggle looks at it as a costume per se. Oliver, in the last season, gave him advice in terms of concealing his identity, and so Diggle approaches it from a very practical standpoint. He followed Oliver's advice and he's got a means of concealing his identity, but I think Diggle would probably react to anyone calling it a costume."
Ramsey revealed that Digg would be getting his own superhero outfit at this past Comic-Con International in San Diego, saying, "Diggle is going to get some sort of concealment... I didn't expect to be as well-conceived as it was -- I don't think you'll be disappointed."