At 64 years old, Peter Mullan has this physical status:
Mullan went on to the University of Glasgow to study economic history and drama. There, he began acting and continued stage acting after graduation. He had roles in films such as Shallow Grave, Trainspotting, Braveheart and Riff-Raff. Mullan's role as a recovering alcoholic in My Name Is Joe won him the Best Actor Award at the 1998 Cannes Film Festival.
His first full-length film, Orphans, won an award at the Venice Film Festival. In 2002, he returned to directing and screenwriting with the controversial film The Magdalene Sisters, based on life in an Irish Magdalene asylum. Mullan won a Golden Lion award at the Venice Film Festival.
Mullan appeared in the 2021 miniseries The North Water and The Underground Railroad. He also starred in the Amazon Prime Video series The Lord of the Rings: The Rings of Power, which premiered in 2022.