Sid Sumner is a fictional character from the British Channel 4 soap opera Hollyoaks, played by Billy Price, who made his first appearance on 9 May 2019.

In addition to the far-right and drug trafficking plots, Sid's other notable storylines include his adoption by Leela Lomax (Kirsty-Leigh Porter), his ambitions to become a singer-songwriter, a relationship and later friendship with Juliet Nightingale (Niamh Blackshaw) and his subsequent heartbreak when she comes out as a lesbian and becoming an amputee after his leg is run over by Peri Lomax (Ruby O'Donnell) while he is under the influence of ketamine.

Price's casting was announced on 9 May 2019 as part of the show's extremism plot starring Ste Hay (Kieron Richardson), with news outlets noting that Sid would immediately start making racist comments towards fellow student Imran Maalik (Ijaz Rana).

[1] It was subsequently revealed on 17 October 2019 that Price had been promoted to a series regular following the conclusion of the far-right storyline, stating that "the County Lines plot will be one of Hollyoaks' biggest stories of 2020, involving all of the young characters and the much-loved families.

Alongside familiar faces like Romeo, Tom, Charlie and Ella, we'll see Sid closely involved in the dramatic year-long storyline".

[2] Impressed by Price's work during the extremism storyline, the writers decided they wanted to give Sid a big, hard-hitting storyline and develop his character by introducing Connor Callard as his cousin Jordan Price, a drug dealer who would draw Sid into the world of county lines drug trafficking.

He has that freedom now to just be his own person, which is really nice because that gives me a chance as an actor and Sid, as a character, to play with all the new stuff that he hasn't been able to do before.

[5] Of Sid's first big storyline, Price remarked that he felt "honoured to have been involved in the far-right story.

"[8] When the county lines storyline was announced, Price stated that he "was excited and to be a big part of it is a pleasure.

Digital Spy praised Hollyoaks for giving Sid agency by allowing him to make the decision to sign the amputation forms and having him seek out advice and support online.

After Ste attempts to flee to Newcastle, he and Sami Maalik (Rishi Nair) are kidnapped by Stuart and Jonny Baxter (Ray Quinn) and taken to a cliff.

Sid, realizing how far his father has gone and wanting to make amends, warns those in attendance at Sami's wedding about Stuart and Jonny's intentions and Sid subsequently accompanies Leela Lomax (Kirsty-Leigh Porter), Peri Lomax (Ruby O'Donnell) and Azim Desai (Nav Sidhu) to the cliff to save Ste and Sami.

She invites Sid to stay at her flat, which Sienna's sister, Liberty Savage (Jessamy Stoddart), and partner, Brody Hudson (Adam Woodward), disagree with.

When the school is searched for drugs, Sid hides Juliet's stash in his locker so she isn't incriminated, which causes him to be late for his music exam.

Sid is distraught upon waking up in hospital when Misbah Maalik (Harvey Virdi) informs his that his leg later has to be amputated in order to prevent infection.

He initially refuses the surgery and finds it difficult to come to terms with what has happened to him though, with emotional support from Ste, Peri and Juliet, he eventually agrees to sign the consent form.

After a few weeks at a rehab centre, Sid returns to the village but struggles to adjust to his new life as a disabled person, leading him to seek advice from Courtney Campbell (Amy Conachan).

As he continues physiotherapy, he is comforted by Ste, Leela, Peri and Juliet and goes on to start a band with Brooke Hathaway (Tylan Grant) and Imran Maalik (Ijaz Rana) who ask for his help when they are hired to play at the wedding of Tom Cunningham (Ellis Hollins) and Yasmine Maalik (Haiesha Mistry).

Sid says a tearful goodbye but Jordan is later accidentally murdered by Ella Richardson (Erin Palmer), while Juliet is subsequently arrested for her role in the operation.

Sid is revealed to be alive two weeks later after surviving the attack and working with Ste to help bring Victor down.

For his portrayal of Sid, Price was nominated within the Serial Drama Performance at the National Television Awards.