After beating Persona 5 Royal's tutorial section, you’ll be taken to an interrigation room where you’re subjected to illegal police tactics. You’ll be asked to write down your name to sign a paper. This is the part where you can make a funny, fake name like “BigTime CrimeGuy.” Some players might want to further immerse themselves in P5R’s world by using the main character’s “canon” name, as games often have. So what is Joker's real name? The answer's surprisingly complicated, and that's a repeating pattern throughout the Atlus series.