Background
Gravelle was born in Porthcawl.
Gravelle was born in Porthcawl.
In 2003, Gravelle appeared in the United Kingdom drama series Holby City and was a regular in the acclaimed British Broadcasting Corporation Wales show Belonging for two series. His other television appearances include Casualty, Caerdydd and Judge John Deed. He appeared in "End of Days", the first series finalé of Torchwood as a medical Doctor dealing with cases of the Black Death.
He later provided voice acting for the Torchwood Play "The Dead Lincolnshire" which broadcast on British Broadcasting Corporation Four in July 2009.
From 2007, he played the lead character of Gangster Lyn Edwards in the Welsh-language television series Y Pris, dubbed ""The Sopranos" by the sea". The role earned him a British Academy of Film and Television Arts Cymru nomination for best actor in 2010.
Gravelle starred in the 2010 film Patagonia and in British Broadcasting Corporation Wales series Baker Boys as Rob, the co-manager of Valley Bara and the fiancée of Sarah (Eve Myles). In 2013, he was cast in the hit Independent Television crime drama Broadchurch as Joe Miller, husband of Olivia Colman"s character.
Later that year he guest-starred in the Welsh detective drama Y Gwyll, in which his real-life wife Mali Harries stars.