The show is filmed in Wales with a big Welsh cast and the closing titles songs is Burning Hell is song by famous Welsh singer Tom Jones.
The Skirrid Inn is a real pub and is reputedly one of the most haunted places in Wales.
Actress Natalia Kostrzewa, who portrays Eva Bartosz, secured the role through a single self-tape audition.
Aneirin Hughes, Mark Lewis Jones and Eiry Thomas appeared in Keeping Faith.
Aneirin Hughes, Mark Lewis Jones, Gwen Ellis, Sharon Morgan and Eiry Thomas appeared in Hinterland.