Julián's deceased wife.
- Death by Origin Story: She was killed in a car crash three years before Julián was recruited for the Ministry.
- Only One Name: Her surname is never revealed.
- The Lost Lenore: At several points of the first season, Julián attempts to use the Ministry's means to contact her (via phone calls to 2012 or visits through the time doors).
Alonso's beloved wife.
Alonso de Entrerríos Jr.
Alonso's son, who has followed in his father's footsteps by joining the Spanish Army.
- Heroic Lineage: A soldier and son of a soldier.
- Lies to Children: Receiving part. Blanca never told him Alonso had been sentenced to death, instead making up a story of him dying heroically in the battlefield, and managing to kill ten enemies when he already was deadly wounded.
- Luke, You Are My Father: Downplayed. Alonso reveals he shares his father's name not knowing he's actually talking to him.
- Name's the Same: With Alonso, the father he never met — or so he thinks.
Enric & Carme Folch
Amelia's parents from the 19th century.
- Deliberate Values Dissonance: Amelia's mother still has some traditional values in mind, something that clashes with Amelia's feminist thinking. Julián indirectly calls her for being quite a submissive woman in the dinner.
- Disappeared Dad: The events of the Ministry stopping the Sons of Padilla from killing King Alfonso XII indirectly lead Enric to commit suicide.
Pacino's father who died after committing suicide for not capturing Francisco Morán. After Pacino solved the Morán mystery, he changed History and his father is alive again.
- Disappeared Dad: Pacino didn't get to know his father very well as he died when Pacino was just a child. Luckily, Pacino finally has some time to get to know him better after catching Morán.
- Driven to Suicide: He shot himself in the mouth with his gun after he couldn't stand people mocking him for saying that Morán the killer vanished through a cabinet. But thanks to Pacino solving the case and changing History, he is alive and spends more time with his son.
- Then again he tries to commit suicide as he can't stand the idea of being divorced. Pacino stops him from doing so and promises to stay with him.
A beautiful lawyer that Alonso met in a riot. She is suspiciously identical to his beloved Blanca.
- Identical Stranger: Why she looks like Blanca is a mystery or a coincidence.
- Ms. Fanservice: In stark contrast to her 16th century doppelganger. She has a lingerie scene in episode 19.
- Rescue Romance: Elena begins to fall in love with Alonso when the police force her to move from the building's entrance and the swashbuckler fights against them.
The Ministry's new liaison to the Government after Susana is gone. She had a small romantic relationship with Ernesto.
- New Old Flame: To celebrate that she is the new liaison to the Government, she has a few drinks with Ernesto and have a small romantic moment until Salvador phones from the wedding to seek help. It's still up to debate if they are together.
Javier, aka "Nexus 6"
Salvador's unknown son with the late Luisa. He is an expert in computer programming and a sort of YouTube-ish celebrity.
- Shout-Out: To the Nexus 6 Replicant class from Blade Runner, of course.
- Toilet Humor: In his "Granny Bag Unboxing" video he mentions that he had urinated.
Sebastián Lombardi's daughter and unwilling sidekick in his quest to expose the Ministry.
- Beleaguered Assistant: Her father asks her to record everything when they go to the Ministry, and by her reactions to everything Lombardi does, you can tell she'd rather be doing anything else, anywhere else.
- Breaking the Fourth Wall: She thinks at first that the time travel to Columbus' years is just scenery for a Historic TV series like Águila Roja or Isabel.
- Daddy's Little Villain: While she accompanies him to prove he was right all the time about the Ministry of Time, she is still doubtful.
- The Lancer: To her own father. She tries to convince him that he is just obsessed, even when she knows the truth about the Ministry, and she tries to gain back his senses.
A young beautiful woman from the Middle Ages who is forced to marry the nobleman Don Fadrique de Villaespesa but her heart belongs to the shepard Sancho. After Don Fadrique kills Sancho in a duel, the legend says that Constanza committed suicide throwing herself from the castle's tallest tower. But she also found a time door...
- Arranged Marriage: Her parents, also noblemen, were the one who arranged the marriage to Don Fadrique.
- Broken Bird: She witnessed Sancho's death at the hands of Don Fadrique and was forced to marry him. Her life was so miserable that she couldn't stand it.
- Driven to Suicide: That's what the legend says. She threw herself because she didn't want to have a miserable life with Don Fadrique and mourn Sancho's death. But Constanza found a time door that led to 2016 and entered it. She still wanted to commit suicide but Julián and Amelia convinced her not to do so.
- Earn Your Happy Ending: Don Fadrique was defeated in a fair duel against Alonso but she was still in danger if she returned to her original timeline, so Salvador decided to send her to Santa Clara de Tordesillas with Angustias' friends and was made a nun, a much better option than suicide.
The shepard who loved Constanza and challenged Don Fadrique for the right to marry her.
Ortigosa's incredibly annoying brother-in-law.
- Asshole Victim: Played for Laughs, he gets threatened and knocked out for being a nuisance and trying to be funny.
- Bullying a Dragon: He makes the mistake of mocking Spinola's armor when he shows up. The general, clearly in no mood for jokes, immediately proceeds to knock him out.
- Butt-Monkey: Irene threatens to chop off his penis when he stops to flirt with her and Rocío, and he gets knocked out by Spinola for mocking his clothes.
- Casanova Wannabe: He flirts with many of the female guests to his sister's wedding, with absolutely no success.
A guest from Ortigosa and Natalia's wedding. She has a romantic relationship with Irene.
- Lipstick Lesbian: Like Irene, she is very feminine, something that confuses many men such as Ortigosa's brother-in-law.
- Heroic Sacrifice: When the British won't go any further into Operation Mincemeat, he throws himself to the sea to be the corpse that was found by the Germans to commence said Operation.
The Naylor Family
A Spanish family from Huelva with English ancestry who are old friends to William Martin.
- Cool Old Guy: Mr. Naylor is a friendly Andalusian man who helps the Patrol and William to prepare Operation Mincemeat.
- Identical Grandson: The young Lucía and Lucía's granddaughter are all played by the same actress.
- The Promise: Pacino tells the young Lucía to bring flowers every year to William's grave. And she gave her word, bringing flowers even as an old woman and accompanied by her granddaughter.
A young woman running away from time to time for being considered a witch. The 19th Century poet Gustavo Adolfo Bécquer falls in love with her and becomes her muse.
- The Atoner: She is constantly looking for pardon for being a "witch" in all the time ages she is been.
- Broken Bird: Mencía has been constantly bullied and chased for witchcraft through the ages. She finds some love moments when Bécquer falls in love with her and Juana offers her baby so the townsfolk don't kill him.The escape is no matter, the chase never ends! I find the same Inquisition everywhere and in every single one I'm a culprit.
- Defiant to the End: Chased by the townsfolk and likely to find herself cornered by them, she still finds time to taunt them before her eventual suicide.Sons of Satan! Is that all the fast you can run?
- Driven to Suicide: She falls from a cliff when she can't reason with the Trasmoz townsfolk.