Many of the actors in the movie are old acquaintances for Spanish viewers. The Count-Duke of Olivares is played by Rafi from the Torrente films (Javier Cámara), Guadalmedina is the pretty boy from Tesis (Eduardo Noriega), Quevedo is Antonio Alcántara's (from the TV series Cuéntame) brother (Juan Echanove, an institution in Spanish movies, TV and theater), and so on.
Hey, It's That Voice!: The TV series has an extensive redubbing to mask the fact it was filmed in Budapest with non-Spanish-speaking extras, and many a viewer would have felt perplexed at hearding José María Carrero (a renowned Spanish dubber specialized in anime and videogames, famous for also being Portgas D. Ace, Joe Kido and Goemon Ishikawa XIII) voicing every unnamed character.
Remake Cameo: In the series, the Marchess of Hinojosa is played by Luis Zahera, who also appeared in the film playing a character named Pereira.