Brave New World Captain America: Brave New World features the official MCU debut of the Serpent Society, but there are some key differences when compared to the source material. The movie’s director,

In addition to Eposito's Sidewinder, one character that appeared was Jóhannes Haukur Jóhannesson as Copperhead, who battles Sam at the start of the film. While both characters lacked the same kind of bite as their comic book counterparts, Onah realized during the project's development that this was the safer approach.