'A flash of brilliance just went out': Tributes are paid to comedian John Sessions who starred in Whose Line Is It Anyway? and Stella Street during decades-long career after his death aged 67

Tributes are being paid to actor and comedian John Sessions, 67, who died from a heart attack on Monday, it was announced today.

John Gibb Marshall, better known by his stage name John Sessions, passed away at his home in South London yesterday, his agent confirmed.

The comedian is best known for his appearances on panel shows including Whose Line is it Anyway?, Have I Got News For You, and QI, as well as numerous appearances in UK and Hollywood movies.   

He was not married and did not have children.

Paying tribute to the actor, fellow comedian Ronni Ancona described him as 'a genius' while Robert Webb remembered him as someone who 'absolutely inspired me.'

John Gibb Marshall, better known by his stage name John Sessions, passed away at his home in South London yesterday. Pictured at The Wipers Times play, London, 2017

John Gibb Marshall, better known by his stage name John Sessions, passed away at his home in South London yesterday. Pictured at The Wipers Times play, London, 2017

Comedian Rory Bremner tweeted: 'Jeez. Another one. John Sessions. Just the best, he’d blow everyone away on Whose Line with his speed of thought & breadth of reference.

'Utterly absorbed by Hollywood, its characters and stories, brilliant raconteur, genius mimic. A flash of brilliance just went out.'

Actress and comedian Helen Lederer added Sessions was 'such an original force of clever wit and talent.'  

Comedian Rory Bremner shared a tribute, tweeting:  'Jeez. Another one. John Sessions'

Comedian Rory Bremner shared a tribute, tweeting:  'Jeez. Another one. John Sessions'

Actor Samuel West tweeted: 'Hate that John Sessions has gone. World so much better with him in it.'

Actor Samuel West tweeted: 'Hate that John Sessions has gone. World so much better with him in it.' 

The team at QI paid tribute tweeting that Sessions was a panellist on the show's first episode

The team at QI paid tribute tweeting that Sessions was a panellist on the show's first episode

Robert Webb tweeted: 'Bobby Ball and now John Sessions! Two very different performers who both absolutely inspired and delighted me at different times. Lovely, funny men.'  

A statement issued by his agent Alex Irwin today said: 'It is with great sadness we can confirm that on Monday, November 2, the actor John Sessions died at his home in South London. 

'He will be hugely missed.' 

Sessions was born on January 11, 1953, in Largs, Ayrshire, Scotland, and had a twin sister, Maggie, and an older brother Bill. 

John Sessions performing at the Kings Head Theatre, London, 1985

John Sessions performing at the Kings Head Theatre, London, 1985

Evening Standard Drama Awards at the Savoy, John Sessions with Joan Collins, November 1994

Evening Standard Drama Awards at the Savoy, John Sessions with Joan Collins, November 1994

Mark Hadfield and John Sessions (right) at Road play, After Party, London, July 2017

Mark Hadfield and John Sessions at Road play, After Party, London, July 2017

The family left Scotland for Bedford, Bedfordshire, when he was three. He studied MA in English literature at Bangor University before moving to Canada to  spend four years working on a PhD from McMaster University. 

In 1979, at the age of 26, he decided to embark on an acting career, attending Rada where he met his long-time friend Kenneth Branagh.

Three years later he landed a part in his first film, The Sender, and began working the comedy circuit alongside French and Saunders booking gigs as a double bill. 

Sessions was the only mimic impersonating politicians on the satire Spitting Image to eventually earn his own puppet, he proudly told The Independent: 'They did John Sessions going up his own arse.'

Friends and colleagues today paid tribute to Sessions, who died aged 67 on Monday

Friends and colleagues today paid tribute to Sessions, who died aged 67 on Monday

His big-screen credits included The Good Shepherd, The Merchant of Venice and The Bounty. Sessions also starred alongside Meryl Streep in the Margaret Thatcher biopic The Iron Lady.   

He was also known for his surreal performances on his one-man TV shows. Recent TV drama credits included Victoria, The Loch and Mr Selfridge.  

The actor also performed in various film adaptations of Shakespeare plays including Kenneth Branagh's Henry V in 1989, playing Philostrate in the 1999 film of A Midsummer Night's Dream, and Salerio in the 2004 movie The Merchant of Venice.  

A tweet from the team behind panel show QI said: 'John Sessions was a panellist on QI's first ever episode: Series A, Episode One, 'Adam'.

'His incredible wit and encyclopaedic knowledge played a huge part in the show's history and everyone at QI is deeply saddened to learn of his passing.' 

Actor and politician Laurence Fox, who worked with Sessions in ITV's Victoria, also paid tribute. He said: 'Dear God, no! He phoned me the other day to check in and tell me that he’s there if I ever need him. 

'What an absolute diamond of a man. Always there for you. Absolutely hilarious. Always kind, always gentle. What a lovely friend. Goodnight dear John.'

Blur musician Graham Coxon said: 'John sessions... was mega bright and funny.. that's a great shame. RIP.'  

John Sessions as Lord John Russell, and Laurence Fox as Lord Palmerston in Victoria, ITV drama series, Series 3, Episode 1, 2019

John Sessions as Lord John Russell, and Laurence Fox as Lord Palmerston in Victoria, ITV drama series, Series 3, Episode 1, 2019

John Sessions as CI Frank Smilie in 'The Loch' ITV Series, June 2017

John Sessions as CI Frank Smilie in 'The Loch' ITV Series, June 2017

The actor also performed in various film adaptations of Shakespeare plays

 The actor also performed in various film adaptations of Shakespeare plays

The actor previously told the Guardian how he outed himself as gay to the Evening Standard when a journalist asked him about his sexuality.

He said: 'Yes I am, but my parents don’t know and I don’t want them to find out by picking up a copy of the Evening Standard.' 

His mother died died unexpectedly six weeks later and his father quickly developed dementia shortly afterwards. 'It was never mentioned,' he said. 

Broadcaster Danny Baker shared a poster for radio series Beachcomber... By the Way to Twitter after the news of Sessions' death broke today. 

He said: 'Shocked to hear that John Sessions has died at 67.

'Terrific company always and a true talent. His roles at the heart of this, my favourite radio series, have given endless pleasure to me and will continue to do so always. Travel easy, chum...'  

Reverend Richard Coles added: ' Very sad to hear about the death of #JohnSessions. 

'He was brilliantly talented, made me laugh a lot, and was a friend for twenty five years. RIP.'

Actor Samuel West tweeted: 'Hate that John Sessions has gone. World so much better with him in it. Lucky to work with him several times.

'Brain the size of Swindon. So full of life and stories and contradictions and possibilities and love for the job of acting. Goodnight, dear man x'