Movies:
* The Good, the Bad and the Ugly (1966) - A cult classic western film directed by Sergio Leone, where he played the role of "Tuco." This role solidified his international fame.
* For a Few Dollars More (1965) - Another Sergio Leone western, where he portrayed the role of "Indio."
* The Big Gundown (1966) - Another Sergio Leone film, starring alongside Lee Van Cleef.
* A Fistful of Dollars (1964) - This was the first film in the "Dollars Trilogy" directed by Sergio Leone, and featured Sancho Gracia as a minor character, "Ramon."
* The Price of Power (1983) - A Spanish historical drama where he played the role of "El Cid."
* The Adventures of Captain Pantoja (1985) - A Spanish adventure film where he played the role of "Captain Pantoja."
* The Blindfold (1989) - A Spanish crime thriller film where he played the role of "Don Luis."
Television:
* El Zorro (1990-1991) - A Spanish television series where he played the iconic role of "Diego Vega," better known as "Zorro."
* Curro Jiménez (1976-1978) - A popular Spanish television series where he played the lead role of "Curro Jiménez," a bandit who fought for justice.
* Brigada Central (1989-1990) - A Spanish television series where he played the role of "Commissioner Martín."
* El pájaro de la selva (1974) - This Spanish television series featured him in a leading role.
This list covers some of his most iconic and recognizable works, but Sancho Gracia was an active actor throughout his career. He also appeared in numerous other films and television projects, both in Spanish and international productions.
You can find a more comprehensive list of his filmography on websites like IMDb.