| Player | Country | Position | born | |
|---|---|---|---|---|
| A | ||||
| Aitor Galarza |
|
Spain | Forward | 13/10/2002 |
| Ajuriagoikoa |
|
Spain | Midfielder | 27/03/1999 |
| Alain Ribeiro |
|
Spain | Midfielder | 08/07/1997 |
| Álex Malón |
|
Spain | Defender | 20/03/1997 |
| Alfonsito |
|
Spain | Midfielder | 10/06/1994 |
| Amador Zarco |
|
Spain | Goalkeeper | 08/05/1998 |
| Amelibia |
|
Spain | Defender | 13/01/1994 |
| Amorrortu |
|
Spain | Forward | 17/10/1995 |
| Ángel López |
|
Spain | Midfielder | 07/02/1997 |
| Areitio |
|
Spain | Goalkeeper | 07/09/1996 |
| Asier Etxaburu |
|
Spain | Midfielder | 07/04/1994 |
| Atienza |
|
Spain | Midfielder | 27/05/1999 |
| C | ||||
| Branimir Cipetić |
|
Bosnia-Herzegovina | Defender | 24/05/1995 |
| Cristian Moreno |
|
Spain | Defender | 18/05/1995 |
| D | ||||
| Diego Martínez |
|
Spain | Defender | 01/04/1995 |
| Dieng |
|
Senegal | Forward | 18/09/1997 |
| E | ||||
| Ekaitz Redondo |
|
Spain | Forward | 04/12/2004 |
| Ekhi Bravo |
|
Spain | Defender | 30/11/1997 |
| Eñaut Mendia |
|
Spain | Forward | 25/06/1999 |
| F | ||||
| Fran Adéva |
|
Spain | Forward | 15/09/1995 |
| Fran Pastor |
|
Spain | Midfielder | 06/01/1994 |
| G | ||||
| Gurrutxaga |
|
Spain | Defender | 22/08/1996 |
| H | ||||
| José Hernández |
|
Spain | Defender | 26/02/1997 |
| I | ||||
| Iker Alday |
|
Spain | Defender | 23/06/2003 |
| Imanol Corral |
|
Spain | Defender | 19/03/1994 |
| Imanol Sarriegi |
|
Spain | Midfielder | 27/04/1995 |
| Íñigo Ibargoien |
|
Spain | Midfielder | 03/09/1995 |
| Irazábal |
|
Malaysia | Defender | 28/11/1996 |
| Iurgi Artola |
|
Spain | Defender | 2002 |
| J | ||||
| Jaime Dios |
|
Spain | Forward | 26/07/1997 |
| Josué Dorrio |
|
Spain | Midfielder | 03/03/1994 |
| Julen Azkue |
|
Spain | Midfielder | 21/09/1995 |
| Julen López |
|
Spain | Defender | 20/07/1995 |
| K | ||||
| Kaiser Lázaro |
|
Spain | Defender | 04/04/1996 |
| Kike Pina |
|
Spain | Defender | 17/02/1997 |
| Koldo Obieta |
|
Spain | Forward | 08/10/1993 |
| L | ||||
| Leiza |
|
Spain | Defender | 18/02/1997 |
| Dany Junior Ltaif |
|
Ukraine | Goalkeeper | 01/05/2000 |
| Luis Lara |
|
Spain | Forward | 03/03/1996 |
| M | ||||
| Magunagoitia |
|
Spain | Goalkeeper | 06/08/2000 |
| Markel Arana |
|
Spain | Defender | 29/11/2001 |
| Markel Goikoetxea |
|
Spain | Midfielder | 08/08/2002 |
| Miguel Marí |
|
Spain | Forward | 30/06/1997 |
| N | ||||
| Pablo Novoa |
|
Spain | Defender | |
| P | ||||
| Primo |
|
Spain | Forward | 24/06/1993 |
| Q | ||||
| Quique |
|
Spain | Goalkeeper | 01/04/1995 |
| R | ||||
| Raúl Giménez |
|
Spain | Defender | 25/09/2003 |
| Roger Escoruela |
|
Spain | Defender | 16/03/1996 |
| Ruiz-Zeberio |
|
Spain | Goalkeeper | 19/06/2000 |
| S | ||||
| Sergio Camus |
|
Spain | Midfielder | 19/04/1997 |
| Sergio Ríos |
|
Spain | Forward | 25/08/1997 |
| T | ||||
| Tote |
|
Spain | Midfielder | 12/06/1999 |
| Moussa Traoré |
|
Guinea | Goalkeeper | 08/05/1995 |
| U | ||||
| Unai Ayala |
|
Spain | Goalkeeper | 22/02/2004 |
| Unai Dufur |
|
Spain | Defender | 21/01/1999 |
| Urko Izeta |
|
Spain | Forward | 29/09/1999 |
| X | ||||
| Xesc Regis |
|
Spain | Forward | 30/09/1996 |
| Y | ||||
| Jorge Yriarte |
|
Venezuela | Midfielder | 04/03/2000 |
| Z | ||||
| Zubiría |
|
Spain | Forward | 2004 |
