Terence Beesley, husband of actress Ashley Jensen, was found dead at the couple's family home in the village of Camerton, Somerset last month.
The Extras and Ugly Betty star had been married to Beesley for 10 years.
According to reports, a 999 call was made from the couple's home but when the ambulance arrived 10 minutes later, Beesley was found unconscious. The 60-year-old, who recently appeared in ITV's Victoria, was later pronounced dead.
The cause of death is still unclear and investigations are ongoing. It is believed that an official report on the case will not be released until next year.
Jensen and Beesley have an eight-year-old son, Francis Jonathan Beesley.
A representative of the actress, who currently stars in BBC drama Love, Lies and Records, told The Sun she was overwhelmed by grief at the moment.
"It is with great sadness that I can confirm that Terence passed away at the end of November.
"Ashley is devastated and respectfully asks for privacy at this extremely sad and difficult time," the newspaper quoted the source as saying.
Jensen first found fame playing the character of Maggie Jacobs alongside Ricky Gervais in the British sitcom Extras. She won the British Comedy Award for Best Television Comedy Actress in 2005 for her role in the show. She was also nominated for a Bafta and Emmy.
The 48-year-old then went on to star in the hit American TV comedy-drama Ugly Betty for four seasons. She starred as Christina McKinney, a seamstress who works at MODE magazine and is best friends with protagonist Betty Suarez (America Ferrera).
Jensen met her husband in 1999, while working on a stage production of King Lear and the two tied the knot eight years later.
The insider said: "Nobody saw this coming. Terence and Ashley's friends and family are all devastated. This is a heart-breaking time for them."
During his career, Beesley featured in many TV series including The Bill, Where The Heart Is, Casualty and Midsomer Murders. He also appeared on BBC soap EastEnders as Derek Branning in 1996.