| Position | Name | Age | Birthday | Nationality |
|---|---|---|---|---|
| Defender | Aitor Paredes Casamichana | 25 | 2000-04-29 | Spain |
| Attacker | Alejandro Berenguer Remiro | 30 | 1995-07-04 | Spain |
| Midfielder | Ander Herrera Agüera | 36 | 1989-08-14 | Spain |
| Attacker | Asier Villalibre Molina | 28 | 1997-09-30 | Spain |
| Defender | Daniel Vivian Moreno | 26 | 1999-07-05 | Spain |
| Midfielder | Daniel García Carrillo | 35 | 1990-05-24 | Spain |
| Attacker | Gorka Guruzeta Rodríguez | 29 | 1996-09-12 | Spain |
| Attacker | Iker Muniain Goñi | 32 | 1992-12-19 | Spain |
| Attacker | Iñaki Williams Arthuer | 31 | 1994-06-15 | Spain |
| Midfielder | Iñigo Ruiz de Galarreta Etxeberria | 32 | 1993-08-06 | Spain |
| Attacker | Jon Morcillo Conesa | 27 | 1998-09-15 | Spain |
| Goalkeeper | Julen Agirrezabala Astúlez | 24 | 2000-12-26 | Spain |
| Midfielder | Malcom Abdulai Ares Djalo | 24 | 2001-10-12 | Spain |
| Midfielder | Mikel Vesga Arruti | 32 | 1993-04-08 | Spain |
| Attacker | Nicholas Williams Arthuer | 23 | 2002-07-12 | Spain |
| Midfielder | Oihan Sancet Tirapu | 25 | 2000-04-25 | Spain |
| Defender | Peru Nolaskoain Esnal | 27 | 1998-10-25 | Spain |
| Midfielder | Raúl García Escudero | 39 | 1986-07-11 | Spain |
| Goalkeeper | Unai Simón Mendibil | 28 | 1997-06-11 | Spain |
| Midfielder | Unai Gómez Etxebarria | 22 | 2003-05-25 | Spain |
| Midfielder | Unai Vencedor Paris | 25 | 2000-11-15 | Spain |
| Defender | Yeray Álvarez López | 30 | 1995-01-24 | Spain |
| Defender | Yuri Berchiche Izeta | 35 | 1990-02-10 | Spain |
| Defender | Álex Petxarroman Eizaguirre | 28 | 1997-02-06 | Spain |
| Defender | Íñigo Lekue Martínez | 32 | 1993-05-04 | Spain |
| Defender | Óscar de Marcos Arana | 36 | 1989-04-14 | Spain |