Jon Seda 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 portrayed U.S. Marine John Basilone, recipient of the Medal of Honor, in Tom Hanks and Steven Spielberg's The Pacific. On television, he had roles as Detective Antonio Dawson in NBC's Chicago P.D., and as Paul Falsone in NBC's Homicide: Life on the Street.

Early life
Seda was born in Manhattan to parents of Puerto Rican descent and raised in Clifton, New Jersey. After graduating from Clifton High School, Seda was convinced by two friends that he should take up boxing, so he began working out in a gym.

He boxed in several gyms in New Jersey and soon was a runner up in the New Jersey Golden Gloves competition. As an amateur boxer, Seda had a record of 21 wins and one loss.