Juan Castillo played for the Javelinas in 1978-80 and was a member of the 1979 NAIA national championship team. He was the offensive line coach for the Javelinas in 1982-94 before joining the Philadelphia Eagles’ coaching staff. He was inducted into the Javelina Hall of Fame in 2004.
He has been the offensive line coach for the Eagles since 1995.
Castillo, from Port Isabel, has had three linemen earn Pro Bowl honors, including Jermane Mayberry, a former Javelina who played under Castillo at TAMUK.
Castillo is one of four coaches in the NFL of Hispanic descent.
He had summer internships with the Tampa Bay Buccaneers, Seattle Seahawks and Buffalo Bills before joining the Eagles.
With the Javelinas, he coached five All-America first-team honorees.
After finishing his career with the Javelinas, Castillo played with the San Antonio Gunslingers of the USFL. He was a graduate assistant coach for the Javelinas and was on the Kingsville H.M. King High School staff in 1986-89 before returning to Texas A&I.
He and his wife, Zaida, from Kingsville, have four sons: Gregory, John, Andrews and Antonio.