| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Guillermo Antonio•Castro Orellana | |
| Used name | Guillermo•Castro | |
| Nick/petnames | Loro | |
| Born | 25 June 1940 in San Salvador, San Salvador |  ESA |
| Affiliations | Atlético Marte — San Salvador, San Salvador | ESA |
| NOC | El Salvador | ESA |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1968 Summer Olympics | Football (Football) | ESA |
Guillermo Castro | |||
| Football, Men (Olympic) | El Salvador | =13 |
