Born 1986 (age 39) · La Coruña, Galicia, Spain
Appears in 52 titles

Mario Casas Sierra (born 12 June 1986) is a Spanish film and television actor. Known for his roles in Spanish cinema and television, he has received various accolades, including a Goya Award, two Gaudí Awards, and three Feroz Awards. In 2006, after featuring in minor credits in Motivos personales and Obsesión, Casas landed his first television main role in the teen drama SMS: Sin Miedo a Soñar and also debuted on the big screen in Summer Rain. Casas acquired a larger clout owing to his appearance in the television series Los hombres de Paco, as part of a popular love triangle together with Hugo Silva and Michelle Jenner. His early film career, featuring in box-office darlings such as Sex, Party and Lies (2009), Brain Drain (2009), and Three Steps Above Heaven (2010), consolidated after his performance as bad boy Hache in the latter title, which earned him wide popularity in Spain. He also starred in the television series El barco (2011−13). He went on to feature in starring roles in films such as Unit 7 (2012), I Want You (2012; the sequel to Three Steps Above Heaven), The Mule (2013), Witching & Bitching (2013), Ismael (2013), My Big Night (2015), Palm Trees in the Snow (2015), Toro (2016), The Invisible Guest (2016), The Bar (2017), The Skin of the Wolf (2017), The Photographer of Mauthausen (2018), Bye (2019), The Occupant (2020), and The Paramedic (2020). He also appeared in English-language international projects Eden and The 33. Casas' leading performance in Cross the Line (2020) earned him his first Goya Award for Best Actor. He made his debut as a director with Caged Wings (2023). He received renewed industry recognition for his leading role in Away (2025).

Filmography

The Invisible Guest
8.1
The Invisible Guest
2017
as Adrián Doria
Three Steps Above Heaven
7.7
Three Steps Above Heaven
2010
as H.
I Want You
7.4
I Want You
2012
as Hache
The Bar
6.3
The Bar
2017
as Nacho
The 33
6.4
The 33
2015
as Álex Vega
Bird Box Barcelona
5.9
Bird Box Barcelona
2023
as Sebastián
The Occupant
6.4
The Occupant
2020
as Tomás
The Photographer of Mauthausen
7.0
The Photographer of Mauthausen
2018
as Francesc Boix
The Paramedic
6.0
The Paramedic
2020
as Ángel
Witching & Bitching
6.4
Witching & Bitching
2013
as Antonio "Tony"
Palm Trees in the Snow
7.4
Palm Trees in the Snow
2015
as Kilian
Cross the Line
6.8
Cross the Line
2020
as Dani
Goodbye
7.0
Goodbye
2019
as Juan
My Big Night
5.3
My Big Night
2015
as Adanne
Unit 7
6.1
Unit 7
2012
as Ángel
Brain Drain
5.2
Brain Drain
2009
as Emilio
Toro
6.0
Toro
2016
as Toro
Sex, Party and Lies
4.6
Sex, Party and Lies
2009
as Tony
The Skin of the Wolf
5.5
The Skin of the Wolf
2018
as Martinón
Agent Zeta
6.6
Agent Zeta
2026
as Zeta