Diavolo and Doppio; Two in One Identity

In part 5 of JoJo’s Bizarre Adventure, we hear about the character, Diavolo, a mafia boss that protects his identity at all costs. When we finally see the boss in the series, we do not actually see him. Instead, we are presented with a young, innocent-looking man going by the name of Doppio. We are presented to Doppio first, then later learn that the mafia boss, Diavolo, and the innocent underling, Doppio are double identities for each other.  

Doppio using ice cream as a phone to talk to Diavolo (Season 4, Episode 29)

Understanding the Duo

Diavolo and Doppio are two personalities living in the same body and it can be debated on who the original owner of the body is. The appearance of the person will change depending on which person is in control of the body. Diavolo and Doppio work together and use their double identity to benefit one another. Doppio works as the second-in-charge in the mafia right under Diavolo. Doppio also works as a mask for Diavolo, making it even harder to identify Diavolo as the mafia boss. This double identity all works in favor for Diavolo, as he goes to extreme lengths to protect his true identity.  

Diavolo standing in confusion with color-shift (season 4 Episode 38)

The Devil and his Double

In truth, while the personalities share one body, it is clear that Diavolo does not care for Doppio and uses him as nothing more than protection and as a double identity. Diavolo clearly is the leader of the two and Doppio is nothing more than a loyal servant. The double life of Diavolo is what takes him so far in his career and what enables him to stay hidden for so long. 

JoJo’s Bizarre Adventure. Directed by Naokatsu Tsuda, Yasuhiro Kimura, Yasuko Kobayahsi, and Hideya Takahashi, Viz Media, 2016.