 Due to the large amount of action in the series, fabrics "with the feel and texture of the 1940s" had to be sourced in large quantities, to allow for the creation of four, five, or more of each costume.Ottobre-Melton's process "for each episode, [is to] read the script first, and then search for historic photos that relate to what the episode is about.Afterwards I chose the fabrics, and then begin to design the outfits."