Mario Casas, has 4 siblings. Born in La Coruña, although very young, at just 4 years old, he left with his family to Barcelona. Later, at the age of 18, he emigrated to the Spanish capital in an adventure in which he took his whole family with him.
His parents were very young when they had him; his mother, Heidi, was only 17 and his father, Ramon, 19. Only a year and a half later they had their sister, so they were very young and had two children. For Mario, his father is his "reference", while his mother, like his brothers, are his "confidants".
His mother has been raising her children, while his father is a cabinetmaker, but has also done construction and renovation work. Because of this work, his father had no problems moving to another city, so they decided to accompany Mario when he left for Madrid and settled with him in the city.
Mario has four other brothers and sisters, forming what he defines as "a Sicilian family", a family with many children established around a "matriarch". Mario, is the oldest of them all. He is followed by his sister Sheila, and two other brothers, named Christian and Oscar. Finally, the youngest member of the family, Daniel, who was born in 2014, and whom he considers almost as his "nephew" because of the enormous age difference.
He gets along well with all of them, although especially with his sister Sheila, as they have grown up together. Mario, a loyal tattoo lover, has one dedicated to each of his parents and siblings, with the initials of each one.
He remembers his childhood as "wonderful", although he had a bit of a hard time because he was given "a lot of cane" for being short, even the girls. He developed very late, until he was 15 years old, he continued to have the body of a child. Even so, he has always been a flirt, and had his first "girlfriend" at the age of 4.
As a child he liked everything: singing, dancing, ping-pong, football.... He says he liked to try everything, although he admits that he got tired fast. His professional career began as an "advertisement child", as he was involved in advertising as a child. He advertised Cola Cao, Telepizza, Scalextric... He eventually decided to become an actor after he had enrolled the Cristina Rota School of Dramatic Arts
He also keeps "lifelong" friends from school. They are the ones he made when he arrived in Barcelona and have always been with him. In his words, true friends who you can count on the fingers of one hand.
Over the years he dated a few fellow actresses he starred with in movies such as María Valverde and Berta Vázques. Since 2018, he is in a relationship with famous Spanish actress Blanca Suarez he played with in movies/tv shows such as: Carne de Neon (2010), El Barco (2011-2013), Mi Gran Noche (2015), and El Bar (2017).

La cena
2025

Away
Sergio
2025

The Goldsmith's Secret
Juan Pablo
2025

Escape
N
2024

La Revuelta
Self - Guest · (1 episode)
2024

Bird Box Barcelona
Sebastián
2023

Martínez y hermanos
Self - Guest · (1 episode)
2022

Love At First Sight
Mario
2021

The Innocent
Mateo "Mat" Vidal · (8 episodes)
2021

Cross the Line
Dani
2020

The Paramedic
Ángel
2020

The Occupant
Tomás
2020

Goodbye
Juan
2019

Instinto
Marco Mur · (8 episodes)
2019

Lo Siguiente
Self - Guest · (1 episode)
2018

The Photographer of Mauthausen
Francesc Boix
2018

The Skin of the Wolf
Martinón
2018

La resistencia
(1 episode)
2018

La resistencia
Self - Guest · (3 episodes)
2018

The Bar
Nacho
2017

The Invisible Guest
Adrián Doria
2017

Paquita Salas
Mario Casas · (1 episode)
2016

Toro
Toro
2016

Palm Trees in the Snow
Kilian
2015

My Big Night
Adanne
2015

En la tuya o en la mía
Self - Guest · (1 episode)
2015

The 33
Álex Vega
2015

A Lonely Sun Story
2014

Ismael
Félix
2013

Witching & Bitching
Antonio "Tony"
2013

Eden
Félix
2013

The Mule
Castro
2013

Boys On Film 9: Youth in Trouble
Jaime (segment "Easy Money")
2013

I Want You
Hache
2012

Unit 7
Ángel
2012

The Boat
Ulises Garmendia · (43 episodes)
2011

Three Steps Above Heaven
Hache
2010

Neon Flesh
Ricky
2010

Miedo
2010

Easy Money
Jaime
2010

Paco
Paco 4
2009

Brain Drain
Emilio
2009

Sex, Party and Lies
Tony
2009

Summer Rain
Moratalla
2006

Zeta
Zeta

El hormiguero
Self - Guest · (8 episodes)
2006

SMS: Unafraid to Dream
Javier "Javi" Llorens · (185 episodes)
2006

Paco's Men
Aitor Carrasco · (80 episodes)
2005