- U.S. National Team: MNT
- Position: Defender
- Date Of Birth: Oct. 8, 1986
- Height: 5-7
- Weight: 145
- Hometown: Las Cruces, N.M.
- Previous National Teams: Mexico National Team
- Club: Club Tijuana (Mexico)
Fleet of foot and quick with the ball at his feet, the diminutive Edgar Castillo has the ability to disrupt defenses. After appearances with both the Mexican National Team in friendlies and the U-23 team in Olympic qualifying, Castillo applied to change associations and was declared eligible to play for the United States, the country of his birth. Deployed as both a left-sided defender and a midfielder for his clubs, he has spent his entire professional career in the Primera División in Mexico.
- Made his debut for the U.S. National Team when he came on as a second-half substitute for the last 30 minutes of the 3-1 loss to Denmark on Nov. 18, 2009, in Aarhus
- He is one of two players to appear for both the USA and Mexico, the other being Martín Vázquez
- Before playing for the USA, he made four appearances for Mexico and three appearances for their U-23 team, which failed to qualify for the 2008 Olympics
- Has more than 100 appearances in the Primera División after beginning his pro career with Santos Laguna at the age of 20
Mexico National Team – 2008: Played in Mexico’s final match of the year, entering as a substitute in the 2-1 friendly win against Ecuador on Nov. 12 in Phoenix … 2007: Made his debut for the full team on Aug. 22, a 1-0 loss to Colombia in Commerce City, Colo. … Came in as a sub in the 3-2 defeat to Guatemala on Oct. 17 in the Los Angeles Coliseum … Under-23s: Played in all three matches in Olympic qualifying as Mexico failed to earn a berth to Beijing.