Spoilers below, but boy, this has gotten me really excited:
Well, here's the Personas of P5:
Main character's Persona is Arsene Lupin (yes,
that Lupin, the legendary fictional thief and what the famous anime series is based upon)
Arsène Lupin is a fictional gentleman thief and master of disguise created by French writer Maurice Leblanc.
Ann Takamaki's Persona is Carmen (a fictive gypsy whose tales are often adapted into Opera plays throughout Europe)
Carmen is a fictive female gypsy created by Prosper Mérimée. She first appeared in Mérimée's novella eponymous novella that was first written and published in 1845. The novella was adapted into a variety of different genres, most notably the opera Carmen by French composer Georges Bizet which diverges in significant points from Mérimée's original story. In the end of the tale her lover stabs her to death over and over before turning himself in to the authorities.
Ryuji Sakamoto's Persona is Captain William Kidd. (A legendary Scottish pirate who was unjustly executed by evil English noblemen).
William Kidd is a Scottish pirate in the 17th century who was tried and executed for piracy after returning from a voyage to the Indian Ocean. Believing he was safe from being put on trial for pirating due to connections in England, he was betrayed by his fellow crewmates and supposed friends in England and was found guilty of murder and theft. He was hung and after the rope broke on the first attempt was hung a second time.
Morgana's Persona is Zorro (Yes,
that Zorro!)
Zorro is a fictional character created in 1919 by New York–based pulp writer Johnston McCulley. His true name is Don Diego de la Vega. Zorro is a Californio nobleman of Spanish and Native Californian descent, living in Los Angeles during the reign of the Spanish. He is a masked outlaw who defends commoners and the indigenous peoples of the land against tyrannical officials and other villains.
Yusuke Kitagawa's Persona is Goemon (Yes, the Mystical Ninja, the Japanese Robin Hood who stole from the rich and gave to poor, the man who tried to assassinate Oda Nobunaga and supposedly almost succeeded as well as his failed attempt on Toyotomi Hideyoshi's life which cost both him and his son's life, the thief who was boiled alive for his crimes, oh yeah and of course, the blue haired Konami game mascot...dude was a bad ass, all in all).
Ishikawa Goemon (石川 五右衛門?, 1558 – October 8, 1594) was a semi-legendary Japanese outlaw hero who stole gold and valuables and gave them to the poor.[1] Goemon is notable for being boiled alive along with his son in public after a failed assassination attempt on the civil war-era warlord Toyotomi Hideyoshi. His legend continues to live on in contemporary Japanese popular culture, often with greatly exaggerated ninja skills.
Seems like all of these Personas have a lot in common, eh? Some of them were unjustly killed all in gruesome ways - Goemon was boiled alive, Carmen was stabbed over 10 times by her lover, William Kidd was hung and his first rope snapped, having to be hanged again before finally dying. All of them were betrayed by people they had trust in, all of them could be called "rebels" against their own society's ways and all live on through legends and in fictional work to this day.