American comedian Rob Delaney has praised the ‘heroic’ NHS doctors and nurses who battled to save his two-year-old son before he died of a brain tumour.

The Catastrophe star, who now lives in London, revealed the devastating news in a Facebook post on Friday, in which he paid tribute to his ‘smart, funny, and mischievous’ toddler Henry, who lost his 15-month cancer battle last month.

In his message, Delaney, 41, explained that Henry was diagnosed nearly 15 months ago after suffering persistent vomiting and weight loss just after his first birthday.

‘The NHS nurses and doctors and the home carers and charity workers who helped our family survive Henry’s illness will be my heroes until the day I die.

Delaney has two other sons, aged six and five, and is married.

The show was not picked up, however Delaney went on to co-write and co-star in Catastrophe with Sharon Horgan, taking inspiration for the show from their own lives.

Comedians David Baddiel and Dom Joly were among the first to share their condolences with Delaney.

In the past, Delaney has talked about the importance of the NHS and has spoken out in favour of a universal healthcare system in the US.Dwayne Johnson, Chris O’Dowd and Mia Farrow led the star-studded tributes to Catastrophe’s Rob Delaney after he lost his son.

In a blog post on Tumblr last year, Delaney wrote: ‘‚ÄčAmericans forego care and medicine that their physicians prescribe, because of cost.