Pablo Casanueva begins his relationship with the image through painting, continues with photography and continues in cinema. His main works are: the film 8 films about war (2021), selected at the Asturias Plastic Arts Exhibition and at the Punto de Vista International Documentary Film Festival in Pamplona; the photographic and audiovisual exhibition Xente (2021), selected in the Sala Borrón and in the Catalog of Plastic and Visual Arts of the Principality of Asturias; the short films La seleconstruction of memory (2017) and Escontra la casualidá (2018), both premiered at the Xixón International Film Festival or the musical short film Mensaxe pa la mocedá del Imperiu (2019) based on the work by Xaime Martínez ( Moza National Poetry Prize 2019). The works can also be highlighted: Conserveres (2017), video creation present at the LAN festival (Bilbao); At the end of this journey (2017), short film awarded the Interrail FICX 55 Award; the documentary and web series El Cobayu (2018); the video creation Llaberintu (2019) presented at the FICX or the documentary piece Filme urxente sobre La Plaza (2018).

He became known in 2013 with the premiere of Bernabé, his first feature film and the first in the Asturian language. With him, she was present at the Xixón International Film Festival, at the Europa Cinema Festival and at the Lorient Interceltic Festival, among several screenings in Asturias. He is part of the Association for the Recovery of Historical Memory, the Language Policy Advisory Council of the Principality of Asturies and is linked to various social platforms. He studied Audiovisual Communication at the University of Burgos and at the University of the Basque Country in Bilbao.