No biographical details are currently known.
I have found a number of undocumented roles for Cristino and many of his credited roles were very small, so it seems very probable that there will be more to be found. Like most Spanish actors he does have a number of films where he is credited, but cannot be found, but in many of these I think that can be put down to the only available copies being abysmal quality.
- I tre del Colorado .... Man with Limoux (uncredited)
1969 - Quinto: non ammazzare .... Sheriff (uncredited)
- Tiempos de Chicago .... Casino patron (uncredited)
1972 - ¡No firmes más letras, cielo! .... Furniture mover (uncredited)
- La rebelión de los bucaneros .... Member of Mallory's crew (uncredited)
- Pánico en el Transiberiano .... Train guard (uncredited)
- Treasure Island .... O'Brien (credited as "Cristino Almodobar")
- Vente a ligar al Oeste .... Actor in western (credited)
1973 - El ataque de los muertos sin ojos .... Dacosta's lieutenant (credited)
- La curiosa .... Admirer (credited)
- Las garras de Lorelei .... Boat Man (credited)
1974 - Dick Turpin .... Official (credited)
- El padrino y sus ahijadas .... Cicerone family member (uncredited)
- El talón de Aquiles .... Policeman (credited, but not found)
- Los camioneros (TV series) Ep. 7: "Ida y vuelta por el mismo camino" .... Bernardo (credited)
- Polvo eres... .... Disc jockey (credited)
1975 - Hay que matar a B. .... Driver (uncredited)
- Si quieres vivir... dispara .... Deputy (credited)
1976 - Guerreras verdes .... Civil guard (credited)
- La Carmen .... Escort guard (credited)
- La lozana Andaluza .... (credited as "Cristino Almodobar", but not found)
1977 - Curro Jiménez (TV series) 3 episodes .... Member of Curro's band (credited)
- Juventud drogada .... Police officer (credited)
- La Coquito .... (credited, but not found)
1978 - Cabo de vara .... Baron (credited)
- Curro Jiménez (TV series) 2 episodes .... Member of Curro's band (credited)
1983 - El mayorazgo de Labraz (TV series) Eps. 2, 3 .... Card player (credited in all episodes)
- Mar brava .... Police officer (credited)
- Pisito de solteras (1973) IMDb. I failed to find him after several searches, but the closing credits were cut, so I cannot say if he is credited.
- El extraño amor de los vampiros (1975) IMDb as Villager. I didn't recognise him, but my copy is very dark so I could well have missed him. He is not in the English credits, but may be in the Spanish.