Jason Haynes is a fictional character from the BBC medical drama Holby City, played by Jules Robertson.

Jason arrives at Holby City hospital to work as a porter after being introduced as the nephew of Consultant Serena Campbell (Catherine Russell).

He is characterised as a nice man, who Robertson describes as "geeky and shy" and lacking a sense of humour.

Jason is transformed from a character who needed full-time care in supported accommodation to becoming an independent adult.

Rachael Sigee from the Evening Standard believed it was of the utmost importance that an autistic actor played the role.

[2][3] He told Juliet Rieden from The Australian Women's Weekly that "I auditioned and I was so flawless and so smooth that they decided it was my shot.

If they watch me on Holby City I hope I'm showing them that it can happen for them and they shouldn't lose faith and hope.Jason was introduced as the nephew of Serena Campbell (Catherine Russell).

Russell explained that Serena was only expecting a reply, but because of his Asperger syndrome he takes the message literally and shows up.

"[12] Robertson described Jason as "really nice and sensitive with a deadpan sense of humour and a genuine desire to do good".

[2] The actor has stated that before filming he converses with the cast and crew about techniques to "present Jason as a human character.

The story begins when Jason's carer Allan Coalville (Geoffrey Lumb) collapses and is admitted to the Acute admissions unit (AAU).

[16] Jason has a ruptured liver and Serena's partner Bernie Wolfe (Jemma Redgrave) battles to save his life in the operating theatre.

[17] When Jason and registrar Xavier Duval (Marcus Griffiths) witness Sian Evans (Ajjaz Awad) thrown from a vehicle in the hospital car park, they go to help and discover a stab wound.

[15] "Jason is about to have a baby with Greta, and if you bear in mind where his character began - needing full time care - to have him in that situation without any help, or so Serena thinks, is a bit untenable.

A Holby City publicist the told Tyler from Inside Soap that it was because "her nephew Jason and his other half Greta are due to have a baby - and heavily rely on Serena, of course!

[22] Greta later gives birth to a baby girl named Guinevere and a patient makes Jason worried about what would happen to his partner and daughter if he was to die.

[23] Harper teased the wedding during November 2018 and revealed that they had hired musician and priest Richard Coles to play Henry de Havilland, who would officiate the on-screen ceremony.

[24] Jason and Greta's service was due to be conducted by chaplain Lexy Morrell (Jenny Howe) who was impaled by a shard of glass when a church roof collapses.

Jason's colleagues Dominic Copeland (David Ames) and Lofty Chiltern (Lee Mead) also join the celebrations for a double ceremony.

[28] The British charity National Autistic Society shortlisted Holby City in the drama category at the 2017 Autism Uncut media awards because of Jason's portrayal.

"[4] Alan Shaw from The Sunday Post said that Robertson provides a "unique insight into what makes Jason Haynes such a special character, as he himself is a young man with Asperger's.

"[1] Rachael Sigee from the Evening Standard believed it was of the utmost importance that an autistic actor played the role.

[12] She stated that "it feels like an important moment for disability representation in the UK to have a recurring character with Autistic Spectrum Disorder (ASD) on a mainstream soap.

[33] Sue Haasler writing for Metro described Jason's nuptials as a "festive, if very cold, wedding" and said the episode was "beautiful" with happiness, sadness and a "wonderful script" by writer Ed Sellek.