The Prince (Joey King) is a villainess from the 2022 movie Bullet Train.
The Prince is the daughter of The White Death, a man who leads Japan's largest criminal organization. She was nicknamed The Prince as her father wanted her to be a son. She was ignored by her father growing up, and grew to resent him to the point of wanting to kill him and take over his organization. She is willing to hurt or kill anyone to achieve this goal, even innocent children.
She is a young woman who is extremely manipulative and able to throw people off her evil nature by acting innocent and crying on command. She dresses in a similar way to a schoolgirl outfit with a short skirt.
Sometime prior to the movie, The Prince lures a young boy to the top of a building and pushes him off the roof, the boy survives but is hospitalised. He is the son of a Japanese assassin, and The Prince sends the father a message telling him where he can find the location of the person who pushed his son from the roof. When the man meets The Prince on the train in the seat he was told to meet her in, he assumes someone so innocent couldn't be who he is looking for. The Prince uses this opportunity to use a taser on the father and knock him out.
When the man comes around, The Prince tells him she has a henchman watching his son in the hospital and if she isn't around to answer regular phone calls then the henchman will kill the son, she enjoys telling the father about the many possible ways his son could be killed. This makes the father submissive to her and goes along with her plans.
Her plan is to kill her father, The White Death, who she knows is waiting at the end of the line for the delivery of a briefcase. Her plan is to rig the briefcase with explosives so that he will die when the briefcase is opened. If this does not work then her backup plan is to use a rigged gun that will fire backwards when used. She will use the boy's father as the briefcase delivery man and if the explosion fails to kill The White Death, then she knows he will attempt to kill the father with the gun and instead shoot himself. She gleefully tells the boy's father that she is sending him to his death either way.
Throughout the movie other people on the train are after the briefcase too, and The Prince turns on the tears to manipulate them when she finds herself in bad situations or even suspected of being not as innocent as she looks. In one of these situations she kills a man called Lemon as he collapses to the floor after drinking drugged water. The Prince shoots the unconscious Lemon multiple times in the chest. Though it later turns out that he was wearing a bulletproof vest and didn't die.
At the end of the line she meets her father, the White Death, and points her rigged gun at him. He grabs it from her and she tells him to shoot her. But he doesn't, and just walks past her, ignoring her once more.
At the very end of the movie, the bullet train that everyone is on, comes off the rails and crashes into a town. The White Death held grudges with a lot of the other people on the train, and manipulated them to come on board. One of them is Ladybug (Brad Pitt) who he thinks was part of the assassination of his wife. The White Death points the rigged gun at Ladybug and tries to kill him, but instead shoots himself, as The Prince had planned all along. She shows up at the scene with a big machine gun and is excited to see her father dead at her feet. She looks like she is about to fire on everyone, when a truck appears out of nowhere and hits her. The driver was Lemon, who earlier was thought to have been killed by The Prince. She is not seen or mentioned again after this, and is assumed to have died.
