In an interview, director Chad Stahelski confirms that John deliberately chose not to kill Caine and sacrifice himself so that Caine could live for his daughter, something bigger than both of them.
Wick and Caine were two men who are too good at killing to live ordinary lives, but two women did their ultimate best to keep them out of the game. By taking the bullet and not killing Caine in their duel, John was able to make amends for causing the chaos of Chapter Three and Four.
Caine has no intention of killing John. He took the job solely to protect his daughter from the Table. Trading one life for another is a typical Table move to own a killer's body and soul, but too much knee-on-the-neck also creates resentment.
He is a blind assassin employed by the High Table and also an old friend of John Wick. By the time of the film's events, Caine is hired by the Marquis de Gramont to track Wick down and kill him for his actions against the High Table, under the threat of losing his daughter Mia if he refuses.
As an appointed deputy, Caine is forced to fight John on behalf of the Marquis, even though he is far from keen on killing his friend. At first it seems as if John wants to sacrifice himself for his old friend, which is why he doesn't fire a bullet at Caine in the final gunfight.
It's implied that Caine's blindness was part of his deal for retirement, similar to how the Marquis Vincent de Gramont forced Mr. Nobody to maim his own hand as part of their deal. When asked about it, Caine states that the High Table didn't take his eyes, but rather that Caine gave them to the High Table.
John was born Jardani Jovonovich in a Padhorje village somewhere in the Byelorussian SSR of the Soviet Union to a Ruska Roma family on September 2, 1964. He was orphaned at a young age before being taken in by an old friend of his father, Winston, who would eventually become John's mentor.
Luckily, though, Caine arrives to help him out – after all, he can only win his freedom and his daughter's safety if John makes it to the duel. They fight their way back up the stairs and arrive at Sacre Coeur in the nick of time, just as the sun begins to rise.
A popular fan theory suggests that Helen is the daughter of Winston Scott. Helen may might be an analogy to Helen of Troy in Greek Mythology. It's unknown if Helen was ever aware of her husband's past as an assassin.
Nobody ends up saving him more often and becomes an ally, providing comic relief and a potential spinoff opportunity. Mr. Nobody's motivation to kill John Wick is solely to collect the highest bounty, and he respects John Wick enough to keep him alive, ultimately helping him in the end.
“I never thought I'd see the day,” the King says, before asking Winston if he thinks John is in Heaven or hell. “Who knows,” says Winston. The King chuckles to himself as he walks away. Winston stays behind, touches John's grave, and mutters, “Farewell, my son,” in Russian.
By shooting Reeves' character in John Wick 3's ending, Winston was actually saving them both. On the surface, he seems to be following through with his fealty to the High Table, but, clearly, he doesn't shoot to kill.
A skilled sniper, Marcus represents an older generation of Continental members. Part mentor, part mystery, Marcus has John's back. Marcus was an extremely loyal friend to John Wick, as he only accepted Viggo Tarasov's contract to protect Wick from other assassins such as Ms. Perkins.
John Wick is highly skilled and deadly, but he is not invulnerable and can be defeated by other skilled assassins. Several movie assassins like Vincent, El Mariachi, and Léon possess unique advantages and abilities that could give them an edge over John Wick in a fight.
Caine Lost His Eyes To The High Table Before John Wick 4. It is confirmed that Caine became blind when he lost his eyes to the High Table prior to the events of John Wick 4. This means that he was not born blind, and the single cuts across both eyelids indicate how Donnie Yen's character lost his eyes.
The nickname "Jonathan" is not John Wick's actual full name, indicating that it is likely a personal nickname Winston has given him, potentially supporting the theory that Winston is John's father.
Kennedy's executive order (executive order 11111). JFK's executive order on June 11, 1963, provided "assistance for the removal of obstructions of justice and suppression of unlawful combinations within the state of Alabama." On November 22, 1963 (five months later), he was assassinated.
It was revealed that Winston was, at the very least, familiar with John's Russian heritage. Upon burying John Wick at the end of the film, Winston also notably said, in Russian, "Farewell, my son." This heavily fueled speculation that this meant Winston had been the true father of John Wick all along.
Summary. Director Chad Stahelski finds the theory that Winston is John Wick's father-in-law clever and cool, hinting that it could potentially be true. The theory is supported by the presence of Wick's 1969 Ford Mustang Boss 429, which was driven by Winston in The Continental prequel series.
Forced into battle, Caine struck Koji, leaving the manager weakened further. But the brave warrior believed he was protecting his daughter and attacked even after Caine insisted he did not want to kill him. Ultimately, Koji forced Caine to do just that.
From the moment we meet Donnie Yen's Caine in John Wick: Chapter 4—alone in France, with a photo of his daughter, whom he cannot see, due to both self-induced blindness and some vague prohibitory rules—we know he won't be the typical John Wick baddie.
Played by Shamier Anderson, Mr. Nobody, also known as Tracker, is a bounty hunter with his sights set on Keanu Reeves' eponymous assassin, though bides his time taking Wick down until the reward hits a certain point.
