Mario Horton as Gabriel Diaz (recurring in seasons 2 and 3; main in season 4): a medical student secretly a member of the FPMR, later becomes Claudia's boyfriend.
Emilia Lara as Paola (recurring in seasons 3 and 6; main in seasons 4-5): a young punk artist who becomes Martin's girlfriend and the mother of their first child, Vicente.
Nestor Cantillana as Mateo González (recurring in season 6; main in season 7): a math teacher who becomes a colleague, friend, and later Ana's boyfriend.
Constanza Rojas as Sybilla (recurring in seasons 5 and 7; main in season 6): a young exile returned from Sweden who becomes Felix's girlfriend.
Nelson Brodt as Pedro Herrera (Season 1 and 3): Juan's father.
Ivan Alvarez de Araya as Luciano Acuña (Season 6-7): a renowned doctor who becomes Claudia's boyfriend and later husband.
Benito Quercia as Farid Metuaze (Season 1-5): Juan's boss and later business partner and friend.
Gonzalo Robles as Ricardo Metuaze (Season 5 and 7): a shady businessman and Don Farid's son.
Otilio Castro as Pedro Herrera Escobedo / Tapia (Season 4-5): an agent of the CNI who infiltrates the Herrera family as a supposed brother of Juan.
Nathalia Aragonese as Gloria (Season 6-7): Exequiel's ex-lover and the mother of his first biological child.
Amaya Forch as Alejandra Hurtado (Season 7): a practitioner of natural medicine who becomes Juan's girlfriend.
Diego Casanueva as Gonzalo "Gonza" (Season 3-7): an audiovisual communicator and friend of Paola and Martin.
María Ester Mesina as Señora Marta (Season 3-7): a household advisor who works for the Herrera family; she previously worked for Nancy and Bruno.
Berta Lasala as Mónica Miranda (Season 3): a photographer and friend of Juan.
María José Bello as Sandra González (Season 2, 3, and 5): a medical student and Claudia's friend.
Max Corvalán as Padre Renato (Season 1-7): Félix and Bruno's homeroom teacher.
Catherine Mazoyer as Gloria Del Río (Season 3-7): Ana and Nancy's boss.
Verónica Soffia as Macarena Tagle (Season 2, 3, and 6): the daughter of an officer in the FACH and Martin's love interest, who, in defending her, received a beating that made him unfit to be a pilot.
Nicolás Saavedra as Nestor Diaz (Season 5): a primary school teacher and Gabriel's cousin.
Gabriela Medina as Doña Imelda (Season 1-7): a neighbour of the Herrera family.
Erto Pantoja as Soto (Season 6): a troublesome colleague of Juan and a friend of Riquelme.
Francisco Rodríguez as Francisco Silva (Season 1-2): a medical student, student leader, and Claudia's boyfriend.
Karina Santoro as Camila von Hummel (Season 4-5): a new young neighbour in the neighbourhood and Felix's love interest.
Antonia Zilleruelo as Paulina von Hummel (Season 4-5): Camila's sister and later Bruno's girlfriend.
Lucas Balmaceda as Axel / Felipe Müller (Season 7): a troubled young man who becomes Felix's friend.
Sergio Piña as Don Roberto Cifuentes (Season 6): a businessman and Juan, Soto, and Riquelme's boss.
The first season of the series premiered on October 12, 2008. In this first season, the story is set between 1982 and 1983, starting with Chile's qualification for the 1982 FIFA World Cup, thanks to soccer player Carlos Caszely, and finishing with the first national protest against Augusto Pinochet.
The second season premiered on October 18, 2009. This time, the story is set between 1983 and 1984, starting with a moment that changes the life of the Herrera family, the news of a new baby, and finishing with the birth of baby Ana.
The third season of the series premiered on October 17, 2010 and ended on December 19. Set in 1985, it starts with the 1985 Algarrobo earthquake and ends with Claudia's decision to leave her family, because she's being investigated by the CNI.
The fourth season of the series premiered on October 16, 2011. Set in 1986, it starts with the Herreras reading the goodbye letter Claudia left and Juan going to Argentina to see her. The season finished on December 20, 2011 with Pedro (CNI agent) torturing Claudia, Gabriel (Claudia's boyfriend) being shot and killed by CNI agents, and Claudia finally returning to her home and hugging her mother.
The fifth season of the series premiered on September 23, 2012. The year is 1987, and it starts with Pope John Paul II's visit to Chile. The fifth season ended on December 16, 2012 with Juan trying to get a job after Ricardo, the son of his former employer, steals all the money Juan and him made from selling a textile factory. Claudia, recovering from Gabriel's death, tries to go back to medical school, repeating again the PAA (Chilean MCAT). In the meantime, Felix has his first kiss with Sibila.
The sixth season premiered on October 13, 2013. It focuses on 1988's plebiscite of 1988 and the end of Pinochet's dictatorship. The season's finale took place on January 12, 2014.
Finally, in August 2014, Canal 13 announced the seventh season of the series, based on the year 1989, which began to be issued from October 5 and will mark the end of the series. The recordings were completed on Tuesday November 18, 2014, amid tears and hugs.[5]
The pilot episode attracted 2.06 million viewers in Chile, came first in its time slot, leaving behind other programs like Animal Nocturno in the "competitive Sunday night". The season marked a peak audience of 2.7 million and an average rating, in 10 episodes, of 1.9 million viewers.[6] Los 80 was the most watched new series in 2008, averaging a total of 1.92 million viewers.
For the second season, the show continued in the "competitive Sunday night", against Animal Nocturno from TVN and Caiga Quien Caiga from Megavisión, leading the night with a positive margin of 0.7 million viewers. The series popularity increased, and it started having a big cultural impact in people. The season's audience average was 2.54 million viewers. The season had an average rating of 2.54 million viewers. The most watched episode of the season was the season's finale "Nos queremos tanto".
For the third season, the series still led the Sunday nights and became the most watched show of the year, with 2.67 million viewers, winning awards like TV Grama Award and the Copihue de Oro. The season finale attracted 3.2 million viewers. The season's most watched episode was "Familia", the season finale, with an average of 3.25 million viewers and a peak audience of 4.3 million viewers. This season transformed Los 80 in the most watched TV show in Chile.
The fourth season increased the popularity of the series even more. This was the most watched season of the series and the most watched show of the year again, averaging a total of 2.98 million viewers, winning more awards like APES Award, Copihue de Oro and TV Grama again. The season's finale "Cuando solo nos queda rezar" had an average of 3.4 million viewers, with a peak audience of 4.4 million viewers. The season's most watched episode was "Madres coraje", which had an average of 3.46 million viewers, making it also the most watched episode of the whole series. This season had an average of 2.98 million viewers, and it was both the most watched season of the series and the most watched TV show in 2011.
For the fifth season, a new time slot led to a decline in the show's popularity and to a decrease in viewers, but the show continued leading the Sunday nights. The season's premiere attracted 2.96 million viewers, and was the lead-out to Pareja Perfecta, which attracted 2.51 million viewers that night. The season's finale attracted 2.61 million viewers, and the season's average was 2.58 million viewers, with a total of 12 episodes. The season's finale『El día más feliz de mi vida』("The happiest day of my life") had an average of 2.61 million viewers and a peak audience of 3.4 million viewers. The season most watched episode was "Y nada más", which had an average of 3.07 million viewers. The season had an average of 2.58 million viewers.
