Jonathan Seda (born October 14, 1970) is an American actor. Seda was an amateur boxer who auditioned for and was given a role in the 1992 boxing film Gladiator. He played the role of Chris Pérez alongside Jennifer Lopez in the movie Selena and Detective Antonio Dawson in NBC’s Chicago PD. He also played the role of Paul Falsone in the show Homicide: Life on the Street. He also played the role of U. S. Marine John Basilone, recipient of the Medal of Honor, in Tom Hanks and Steven Spielberg's follow up to Band of Brothers, The Pacific.