His roles in the production of the television shows Sherlock and Game of Thrones have earned him two Creative Arts Emmy Award nominations.
[1] Starting in 2004, Wagner began working as a cinematographer, first shooting music videos and short films.
His first role as a cinematographer for a TV show was for the 2008 BBC Three drama series Spooks: Code 9, for which he filmed all six episodes.
His first feature film The Legend of Barney Thomson (2015) under director Robert Carlyle won the Scottish Bafta award for best movie.
[2] He has also been nominated for ASC and BSC awards and has become one of the youngest members of the British Society of Cinematographers.