[7] Fernández starred in Alberto Rodríguez's political thriller Smoke & Mirrors (2016) as corrupt spy/fixer Francisco Paesa, clinching the Silver Shell for Best Actor at the San Sebastián International Film Festival.

[12] In 2021, Fernández featured in Mediterraneo: The Law of the Sea, in which he portrayed Open Arms founder Òscar Camps, the protagonist of the film.

[13] Fernández featured in 2022 psychological thriller God's Crooked Lines (2022), portraying psychiatric hospital director Samuel Alvar, the nemesis of lead character Alice Gould.

[14][15] In an interview to Vanity Fair, Fernández stated that he believed his character to be "a bit misogynistic in addition to having a big ego".

[16] In 2024, Fernández portrayed two iconic roles in film: Manolo Vital in The 47 and Enric Marco in Marco, the Invented Truth, the former a bus driver of immigrant background who hijacked a Barcelona bus line in 1978 in order to stand for his neighbors' rights and the latter an impostor who falsely pretended to be a survivor of the Flossenburg concentration camp.