Elisa mentions that Santiago is 46 years and two months old. This is approximately the same age that Sergi Mateu, who played this role, was in that moment.
This is Chema Adeva's first appearance. He would play another two different characters in 2003 and 2007.
It's mentioned that Yolanda's parents died when she was very little.
Esther joins the SAMUR team.