Michael Sleggs has died aged 33.
The ‘This Country’ star – who was best known for portraying Slugs in the BBC Three comedy series – had been suffering from heart complications, and just two months ago he told fans his "deterioration" was "fairly rapid".
A BBC Radio Gloucestershire tweet confirmed his death.
It reads: "Actor Michael Sleggs has died. The 33-year-old from Cirencester played Slugs in BBC comedy This Country. He revealed in May he was receiving palliative care for heart failure."
In May, Michael wrote on Facebook: "Hi friends, as a lot of you are probably aware I’ve spent a lot of time in and out of hospital over the past few months.
"This last time it was decided I was reaching the end of options so they’ve sent me home on palliative care to live out the remainder of my days at home. No specific time limit has been given but deterioration has been fairly rapid.
"Anyway as you can imagine this isn’t the ideal way I wished things to go and my family are dealing with a lot of grief. (sic)"
Michael admitted he had "narrowly dodged a coma" after an accidental morphine overdose, and thanked his "kind, caring" fans and friends for supporting him.
He added: "I’ve been sleeping a lot and narrowly dodged a coma by accidentally overdosing on morphine the other day. Anyway as you can imagine this isn’t the ideal way I wished things to go and my family are dealing with a lot of grief.
"Just wanted to say I love everyone reading this status so much, you have all been such amazing, kind, caring people who have all touched my life in so many unique and incredible ways.
"Sorry if this status is too shmaltzy but not everyone has the chance to say goodbye so indulge me lol. (sic)"
Michael starred opposite siblings Daisy May Cooper and Charlie Cooper in the sitcom.