Caspar Phillipson is a Danish actor and singer who has performed onscreen, onstage, and as a voice actor, predominantly in Scandinavian productions. Phillipson is best known in the English-speaking world for his portrayal of John F. Kennedy in the 2016 film Jackie. Although Phillipson appears in Jackie for only ten minutes, his resemblance to Kennedy has been considered unusually striking. Phillipson has subsequently portrayed Kennedy in a short film, in live performances of Kennedy's speeches, in the TV series Project Blue Book, in the 2022 film Blonde and in the 2023 Swedish film "Hammarskjöld".

Jackie is a 2016 biographical drama film directed by Pablo Larraín and written by Noah Oppenheim. The film stars Natalie Portman as Jacqueline Kennedy. Peter Sarsgaard, Greta Gerwig, Billy Crudup, and John Hurt also star; it was Hurt's final film released in his lifetime before his death in January 2017. The film follows Kennedy in the days when she was First Lady in the White House and her life immediately following the assassination of her husband, United States President John F. Kennedy, in 1963. It is partly based on Theodore H. White's Life magazine interview with the widow at Hyannis Port, Massachusetts, in November 1963.