Jaime Roos – 7 Y 3

Bajo Quinto, Backing Vocals – Jorge Nasser
Electronic Drums, Vocals – Jaime Roos
Guitar, Backing Vocals – Pablo Faragó
Guitar, Vocals – Hugo Fattoruso
Piano – Alberto Magno
Piano – Gustavo Oviedo
Tamborim, Vocals – Edison Oviedo
Vocals – "Huron" Silva
Vocals – Rolando Fleitas
Vocals – "Fierrito" Fierro

Backing Vocals – Mariana Ingold
Bajo Quinto – Jorge Nasser
Cello, Viola, Backing Vocals – Estela Magnone
Guitar – Pablo Faragó
Guitar, Electronic Drums, Vocals – Jaime Roos
Piano, Bandoneon – Alberto Magno

Acoustic Guitar, Electronic Drums, Vocals – Jaime Roos
Bajo Quinto – Jorge Nasser
Guitar – Pablo Faragó
Piano, Sitar – Hugo Fattoruso
Vocals – Yamandú Roos

Bajo Quinto – Jorge Nasser
Bajo Quinto, Piano – Hugo Fattoruso
Guitar – Pablo Faragó
Piano – Alberto Magno
Rhythm Guitar, Electronic Drums, Vocals – Jaime Roos

Backing Vocals – Andrés Recagno
Bajo Quinto – Jorge Nasser
Guitar, Electronic Drums, Vocals – Jaime Roos
Piano, Backing Vocals – Estela Magnone
Rhythm Guitar – Pablo Faragó

Backing Vocals – Estela Magnone
Guitar, Vocals – Jaime Roos
Percussion, Guitar Synthesizer – Eduardo Mateo