The blue lines on the ski mask Multiplex wears is reminiscent of his original mask from the comics.
A large map of the city is shown. It is a map of Portland, Oregon with different names.
Michasha Armstrong, who plays Java, has also appeared on Arrow (2012) in the episode Darkness on the Edge of Town (2013)
Simon Stagg is an inventor and the founder and CEO of Stagg Enterprises. His company is responsible for pioneering new, innovative methods in the fields of engineering, chemistry and genetics. Stagg, an unscrupulous man by nature, always resented the fact that his daughter, Sapphire, fell in love with the adventurer Rex Mason. Mason, a former employee of Stagg's, is more popularly known as Metamorpho the Element Man.