Netflix has started production on a new fictional miniseries based on one of Spain’s most shocking real-life cases. The Night Marta Disappeared tells the story of Marta del Castillo, a 17-year-old girl who went missing in Seville on January 24, 2009. Her body has never been found. The streaming giant confirmed the project in January 2026, marking 17 years since her disappearance. The show is now filming in Seville, and the first images of the cast have been released.
The case gripped Spain and made news around the world. Miguel Carcaño, Marta’s ex-boyfriend, confessed to killing her but gave seven different versions of what happened. He was sentenced to 21 years in prison. However, without a body, many questions remain unanswered. The family of Marta has never stopped searching for the truth. This new series aims to show the events with care and respect, with the full support of Marta’s family.
Netflix Confirms Full Cast List for The Night Marta Disappeared
On April 21, 2026, Netflix shared the full list of actors joining the project. The miniseries has brought together some of Spain’s most respected performers.
Blanca Portillo, Vicente Romero, Verónica Sánchez, María León, Paco Tous, and Hugo Welzel are the main stars.
Verónica Sánchez and Vicente Romero play the roles of Marta’s parents, Eva Casanueva and Antonio del Castillo. A first-look image released by Netflix shows the two actors in character, dressed in winter clothes and looking serious outside a building. The image gives a clear idea of the emotional tone of the show. The production team shared the photo on the same day filming began in Seville.
Blanca Portillo, María León, Paco Tous, and Hugo Welzel will play other important figures connected to the investigation and the legal case. The show is being made by Bambú Producciones, the company behind other true crime hits like El caso Asunta (The Asunta Case) on Netflix.
The True Story Behind the Netflix Series
Marta del Castillo lived in Seville, Spain. On the night of January 24, 2009, she left her home to meet her ex-boyfriend, Miguel Carcaño. She never returned. Her parents reported her missing the next day. What followed was a massive police search and a media storm.
Carcaño was arrested and confessed to killing Marta. He said he hit her with an ashtray during an argument. But over time, he changed his story many times. He said he threw her body into the river. Then he said he put it in a trash container. Later, he blamed his stepbrother, Francisco Javier Delgado, for the murder. Each new version led police to dig up new places. They searched the Guadalquivir River, a landfill, and a large farming area called La Majaloba. They found nothing.
The legal case was also very difficult. In 2012, a court sentenced Carcaño to 21 years and three months in prison. But three other people accused of helping him hide the body were set free. The judges said there was not enough proof. Marta’s family was very upset with the decision. Thousands of people protested in the streets of Seville and other Spanish cities.
To this day, Marta’s body has not been found. Her father, Antonio del Castillo, has spent years searching for answers. He has worked with experts using ground-penetrating radar and other tools. In 2023, new searches took place in La Majaloba, but they did not succeed.
What to Expect from the Six-Episode Series
The Night Marta Disappeared will have six episodes. The show is a fictional retelling, not a documentary. This means actors play the roles, and the dialogue is written for television. However, the creators promise to stay very close to the real facts.
“The series meticulously and respectfully reconstructs everything that happened from the day of the disappearance: the initial investigation, the shifting testimonies, the media trial, and the relentless search for the body.” – Netflix Official Statement
The show is written by Ramón Campos, Gema R. Neira, Salvador S. Molina, Curro Serrano, and David Orea Arribas. The directors are Carlos Sedes, Laura Alvea, and José Ortuño. This is the same team that worked on El caso Asunta, another real-life crime story that became a big hit for Netflix in 2024.
The miniseries will show how the media covered the case and how the public reacted. It will also focus on the family’s fight to keep the case alive. Even after 17 years, they have not given up. The show’s Spanish title is En el nombre de Marta (In the Name of Marta), which shows the personal and emotional core of the story.
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Where and When to Watch The Night Marta Disappeared
Netflix has not yet set a release date for The Night Marta Disappeared. Filming just started in Seville in late April 2026. For a six-episode series, filming usually takes a few months. After that, the team needs time for editing, sound mixing, and adding music. Based on how long similar shows take, the series will likely arrive on Netflix in late 2026 or early 2027.
The show will be available on Netflix in all regions where the service works. That includes the USA, UK, Canada, Australia, India, and many other countries. When the release date is announced, it will be the same day for everyone around the world, because Netflix puts out its shows globally at the same time.
This is not the first time Netflix has looked at this case. In 2021, the platform released a documentary called Where is Marta? (¿Dónde está Marta?). That was a three-part docuseries with real interviews and news footage. The new project is different because it is a scripted drama. It uses actors to tell the story, not real people.
The Night Marta Disappeared is part of a growing list of true crime shows on Netflix. Other popular titles include Making a Murderer, The Keepers, and El caso Asunta. These shows mix real events with dramatic storytelling. For viewers who like crime stories and real-life mysteries, this new series will be one to watch.
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