Anthony Sadler Jr. is one of the three protagonists of of the 2018 biographical drama film The 15:17 to Paris. Him along with his close friends, Spencer Stone and Alek Skarlatos stopped the 2015 Thalys train attack.
He was played by himself, same with Spencer and Alek. One of the only times in film history where the real participants played themselves reenacting the events that took place.
Anthony attended a suburban Christian middle school. There he met Alek Skarlatos and Spencer Stone, they became friends instantly. Years later Spencer skyped Anthony, who is now a college student, and talks him into coming to Europe for a vacation, visiting Italy. Afterwards, the three meet in Germany and decide to go to Amsterdam. After a few days there, they finally decide to visit France after deliberation. They depart from Amsterdam Centraal station on the 15:17 train to Paris. On the train, all seems well, until American-born Frenchman Mark Moogalian notices that one of the toilets has been occupied for an unusually long time. When he goes to investigate, a terrorist bursts out with an assault rifle. Another passenger, Damien A., grabs the terrorist by the neck and Moogalian manages to wrest the rifle from the terrorist but is then shot in the back with a 9mm pistol. Passengers begin to flee out of their seats and rush toward the forward cabins of the train, trying to escape. Eventually, the terrorist approaches the next car, where Spencer and his friends are sitting. The moment Spencer sees him, he springs into action. He decides that his only hope, and the only hope of the remaining passengers, is for him to try to defeat the terrorist. Spencer makes a desperate all-out sprint toward the terrorist in the hope of subduing him before being shot. By remarkable luck, the terrorist's weapon jams just as he is about to fire, and he is tackled by Spencer, who successfully disarms the terrorist. Seeing Spencer's progress in subduing the terrorist, Alek, Anthony, and other passengers join the effort to try to further overwhelm the terrorist, finally knocking him out. Spencer then stanches the bleeding by plugging the exit wound in Moogalian's neck with his fingers. The police at the next station enter the train fully armed, discovering that Spencer has subdued the terrorist, and the paramedics begin to treat his wounds, and the more serious ones of the shot passenger. Paramedics take Moogalian to the emergency room at a local hospital and he survives. In a formal ceremony, Spencer, Alek and Anthony are recognized as heroes of France for their gallantry and bravery.
- Before it was decided by the filmmakers to cast the real life people in the three main roles, Jeremie Harris was considered for the role of Anthony.