Alan Rikkin is the main antagonist of the film Assassin's Creed.
In 2016, Alan Rikkin, seeking to acquire another Apple of Eden, takes part in an Animus experiment occurring in an Abstergo facility in Madrid, Spain, conducted by Sophia. Learning of the Spanish Assassin Aguilar de Nerha, who lived during the time of the Spanish Inquisition, and how he'd come to possess an Apple of Eden, Alan had his bloodline traced throughout history, using his wealth to arrange the plan. He and Sophia learn of Callum Lynch, the last-known descendant of Aguilar, and learned about how he'd been put on death row for first-degree murder. Knowing that they can't use Callum's dead body for the Animus, they devise a scheme to have his death faked and his real self to be brought to the Madrid lab, where other Animus users live.
Alan is present when Callum first enters the Animus, and is satisfied with what he's seeing; however, Sophia orders him pulled from the machine after his vitals begin to spike, disappointing Alan. Alan confronts Sophia about this, telling her that the Elders of the Templar Order are going impatient with their lack of progress in finding a working Apple, but she defends her decision. Alan nonetheless holds confidence in her, jokingly-saying "2016, Sophia Rikkin finds the cure for violence". He meets with the Elders later, with his superior Ellen Kaye threatening to pull the funding on the Animus Project entirely if he didn't give them results. He defends himself and his accomplishments to her, saying that religion and politics have allowed the Order's control to become stronger, and that it's about time they give science a try. He is given a 2-day deadline, at which point he'll have to present the Apple to the Templar Order; if he doesn't have it by then, the Elders will cut their losses and remove him from power.
For a second time, Callum is put into the Animus, with Alan watching, having returned from the meeting with the Elders. Callum becomes more in-sync with Aguilar at this point; however, when Aguilar pulls off a Leap of Faith, Callum's vitals spike yet again, forcing Sophia to remove him from the machine to save his life. Again, Alan tries to talk to Sophia about this, and again, she defends herself; as it turns out, for the Animus to work properly without the risk of killing Callum, he must go into it of his own free will. Sophia begins to question Alan's true intentions, but he proceeds to put her mind at ease.
Knowing what's at stake, Alan enters Callum's cell, telling him about the Templars' goals and authority, hoping to convince him to re-enter the Animus without being forced into it. He describes to him the evil of the Assassin Brotherhood, considering them to be nothing more than heartless killers, and tells him about his father Joseph, who is actually in the facility now, having been taken in 1986 after catching him with his wife's corpse; he reveals that his mother was also an Assassin. Alan walks Callum into a room with several other captured Animus subjects and orders the guards to remove them, save for Joseph. With the room empty, Alan gives Callum the Hidden Blade that belonged to Joseph, hoping that he'll be convinced to look at the evils the Assassins have committed and go back into the Animus. Callum confronts his father, who tries to justify his actions, saying that his mother wanted to die rather than be subjected to the Animus' torture; this does nothing to change Callum's mind, as he is convinced now more than ever that the Assassins must be wiped off the face of the planet.
Callum willingly returns to the Animus and manages to find out where Aguilar had put the Apple; in the hands of Christopher Columbus, who discovered North and South America. At that moment, the Animus subjects, led by Moussa, revolt against their captors, killing numerous guards and forcing Alan to order an evacuation. Callum, meanwhile, finds himself surrounded by Animus holograms of his Assassin ancestors; Sophia found herself distracted by one of the holograms, who looks exactly like her, hinting at her Assassin heritage. She is taken away to a helicopter with Alan, and they fly away while the Assassins manage to escape the facility.
In London the next day, Alan arrives at the Templar gathering, while Ellen Kaye congratulates Sophia for his work and promising a bright future for her; out of loyalty to him, Sophia allows him to take credit for finding the Apple. Alan presents the Apple taken from the grave of Christopher Columbus, telling them of his plan to use it to control every human mind on the planet, with the audience applauding him. However, his speech is cut short as Callum, dressed in Assassin robes, appears behind him and slits his throat with his Hidden Blade; in the ensuing chaos, which saw the Templars running away and screaming, Callum and the other Assassins present disappear. Sophia finds her father's body lying on the floor and sees that the Apple is gone and has been replaced with a literal apple from the Madrid facility cafeteria; she swears to take revenge on the Assassins for the death of her father.