|Full name||Andy Francisco Herron Aguilar|
|Date of birth||March 2, 1978|
|Place of birth||Limón, Costa Rica|
|Height||5 ft 9 in (1.75 m)|
|2001–2002||Santos de Guápiles||54||(15)|
|2006||→ Herediano (loan)|
|2012–2013||Fort Lauderdale Strikers||21||(8)|
|* Senior club appearances and goals counted for the domestic league only and correct as of September 28, 2012.
† Appearances (Goals).
Before joining MLS and the Chicago Fire in late in 2004, Herron played two years with Costa Rican Club Sport Herediano, which he led to Costa Rica's 2004's title, by leading the Costa Rican clausura's tournament with 14 goals and 13 assists. Herron had his best season for Chicago in 2006, when the 2006 Budweiser/Fire Golden Boot winner proved his productivity for the "Men in Red" by scoring eight goals in 20 games, with 18 starts. Herron put the team on his shoulders in the team's 2006 Lamar Hunt U.S. Open Cup championship run, scoring four goals and one assist through the competition. His assist and game-winning goal against the Los Angeles Galaxy in the Final at Toyota Park helped the Fire clinch an MLS club-record fourth title to the trophy case.
After two and a half seasons in Chicago, he decided to get back to Club Sport Herediano on a loan from Chicago, but soon after that was sent to Columbus for the second pick in the 2007 MLS SuperDraft (which turned out to be Bakary Soumare) and forward Ryan Coiner. In the MLS Reserve Division he started and played one game for the Crew Reserves, notching one goal in 79 minutes of play.
In February 2008, Herron re-signed with Chicago Fire. On November 26, 2008, he was waived by Chicago.
On January 11, 2006, Herron was suspended for six games without pay for his behavior that led to a red card in a 1–0 loss to the New England Revolution during the Eastern Conference Championship game the previous November 6. According to the MLS Soccer Disciplinary Committee, Herron was disciplined for making "unacceptable physical contact" with the referee Terry Vaughn and assistant referee George Gansner, conduct that led to him being sent off in stoppage time. Adding to the severity of his punishment was the fact that Herron returned to the field after the game.
On April 19, 2007, Herron again was involved in a controversial incident during a game against the Revolution. Herron elbowed New England's Jay Heaps early in a nationally-televised game on MLS Primetime Thursday. He did not receive a penalty card, because neither the referee, nor a linesman, saw the action. ESPN commentator Eric Wynalda called the foul, "the worst I've seen in a long time." He was suspended for four games and fined $3,000.  According to Herron, the elbow was in response to Jay Heaps grabbing his "private area" as well as xenophobic and racist comments.
Herron has also played for the Costa Rica national team, registering 8 goals in 17 games with the team. Being an unmovable striker in the Jorge Luis Pinto's squad and scoring the goal which took Costa Rica to the quarterfinals in the Copa America 2004 held in Chile. Has scored four goals in 27 contests with the Costa Rican Senior National Team, he started and played 45 min. for Costa Rica on September 6, 2006 vs. Switzerland in a 0–2 defeat and scored a pair of goals for the "Ticos" in a 5–2 loss vs. Honduras on1 August 18, 2004 in a CONCACAF World Cup qualifying match, he tallied 11 goals in eight games with the Costa Rican U-23 squad during Olympic Qualifying from 1999–2000.
He have son named Dyan Denilson and a daughter named Mia N. Herron. He grew up playing in the streets of Puerto Limon, Costa Rica. Herron is a big basketball and Chicago Bulls fan.