Jean Pierre Polnareff

Jean Pierre Polnareff is one of the major characters in Part III: Stardust Crusaders, and he makes a further appearance later on in Part V: Vento Aureo. He went with Jotaro Kujo and Joseph Joestar to get revenge for his sister, who was raped and murdered by J. Geil. He is the only non-Joestar to have survived the adventure.

Stardust Crusaders
Learning of his sister's death, he searches for the man that killed her. His Stand powers attracted Dio Brando, and in the same manner as Dio did with Kakyoin, lured him to a fight, and then brainwashed him afterward. Under the influence of Dio, he attacked the Joestar party in Hong Kong. He was confronted by Mohammed Abdul and defeated after some difficulty. While conceding in his defeat, Jotaro sensed Dio's cells in Polnareff's forehead and removed the implant. Afterward, Polnareff joins the Joestar group in their quest to destroy their nemesis, Dio Brando. He got his shot on J. Geil, the murderer of his sister and successfully avenged her death. He falls again under the side of Dio when he was possessed by Anubis, but again, Jotaro frees him. At one point, Polnareff was tricked by Cameo into wishing for his sister, Sherry, and Abdul back to life. These clones attacked Polnareff as clay golems, but this was the point where Abdul reappeared, when they thought that he was killed by Hol Horse.

Vento Aureo
Before the events of Vento Aureo Polnareff attempted and failed to assassinate Diavolo. He was tossed off a cliff and sustained critical injuries, including the loss of one of his eyes and the use of his lower legs. Polnareff, now crippled in a wheelchair, still retains his undying confidence and joins Giorno's group. But somewhere near the end of Vento Aureo, he encounter Doppio not knowing the boy was secretly Diavolo. Polnareff was taken by surprise and tried to get the arrow away from Diavolo, using his time skip Diavolo mortally injures Polnareff, not before he uses the arrow on his own stand. As his body dies it leaves Silver Chariot Requiem as an insane daring stand. Polnareff then appropriates Coco Jumbo, body as his own. He claimed he could do this because how powerful Coco Jumbo stand was allowing his spirit to linger.

Personality
Polnareff is the stereotypical "good nature klutz": he is heroic and protective of those he loves, but is not very bright (although he has shown lots of cunning and strategy throughout the series). He is very impulsive and loud, and is quick to jump into action without considering the risk, character traits that have landed him in lots of trouble. However, he is sincerely dedicated to doing good, and is a good man to watch your back. He also fancies himself as a ladies man, but this is probably him overestimating his actual prowess (he probably has horrible luck with the ladies).

Out of all the characters in the series, Polnareff is the one that has the least problems showing his feelings, and he adds a lot of humor and warmth to what would otherwise be a pretty cold team (Kakyoin and Jotaro in particular are very cold characters). Indeed, while he may sometimes be seen as the comic relief of the series, Polnareff's companions appreciate his good nature and trust him to help them win when a tough battle arrives.

Interestingly, Polnareff's best friends during the course of the series are Mohammed Abdul and Iggy, both of whom he couldn't stand when they first met. In fact, no character mourns the deaths of his companions like Polnareff does, and no other character is as dedicated to avenging them.

Stand
Silver Chariot

Silver Chariot Requiem

In Videogames
Befitting a charge character, Polnareff can string up offensive attacks to form a somewhat unstoppable pattern. His Million Spits has good strength. He also has good Stand combos that can be used to set up attacks for an execution of Special or Super moves. He's also a good character for a juggle game. Armor Takeoff is highly damaging, and used with juggle tactics, he can inflict damage easily in comparison to the other characters.

Black Polnareff As if Polnareff isn't good enough for offense, Black Polnareff is even better. His increased speed gives him a good confusion game. Despite the loss of an active Stand, his moves more than make up for it; all of his special and most super attacks can be chained from basic attacks. While this makes him a close-quarter character, the damage he deals pay off the effort. Also, he gains the properties of any Anubis Sword-wielder; the ability to remember attacks. His version of Dimension Slash renders him completely invincible until the attack deploys by itself.

Trivia

 * Polnareff became the biggest inspiration towards the character design of KOF's Benimaru Nikaido. SNK developers continued referring Benimaru as Polnareff even today.
 * He is often quoted saying "Buttsubusu!" ("I'll beat you up!") or "Buttagitte yaru!" ("I'll slice you to pieces!").
 * There are strong parallels between Polnareff and Inigo Montoya from the movie and novel The Princess Bride: both are at first foes and then allies, both are master swordsmen and both sworn to vengeance again a man with a deformed hand. For Inigo, it was the count with six fingers, for Polnareff, J. Geil with two right hands. Finally when both meet their villain they have a dramatic but concise presentation of their reason and intent for vengeance.
 * He is so far one of the few character holding on to two stand at the same time this would otherwise breaking the rule of only one stand per person as he was been posses by the other Anubis who was nothing more than a sword that combine with Silver Chariot could duel wield. The other person been Emperio using Burning Down the House while having the disk of Weather Report inserted in his head.
 * Polnareff is the second person to have died (his physical body perish) and have his stand continue existing, the other being Notorious B.I.G., however while Notorious BIG had that power Polnareff's Silver Chariot went insane without a user. Thus Polnareff was not dead but fully separated from his stand, while his spirit existed inside Coco Jumbo.