La que se avecina

According to co-creator Laura Caballero, the opening credits weren't use since season 3 because it was expensive to create new cartoons every year (many actors left and arrived the series on season 1, 2 and 3) so they just displayed the cast names.

Isabel Ordaz left the show at the beginning of season 2 in order to work in theatre. When she returned for season 5, it originally a one-year contract, but the writers/producers enjoyed working with her again so much that offered her a renewal. She agreed as long as she could continue to do theatre, which explains her absences in next seasons.

More than 30 actors who had significant roles on 'Aquí no hay quien viva' have appeared on 'La que se avecina', either as regulars or just guest actors.