Linehan is involved in anti-
transgender activism. By the time he went into cancer surgery in 2018, he had already drawn attention for publicly siding with
gender-critical people, yet as he describes in his memoir, "I had not quite nailed my colours to the gender-critical mast." From his hospital bed, he "sent a few tweets carefully explaining my position", which he believed to be "sound" and "in good faith", having thus "identified myself as a '
Terf' ally". Later that year, he expressed these views on a podcast. The episode features a man who learns that his girlfriend is transgender and gets into a physical fight with her. He used the social network
Twitter to criticise "trans ideology", which he believes misrepresents
transgender people and
lesbians. In a December 2018 interview with
Derrick Jensen, Linehan said: "I'm now in a position where I can answer the question honestly of 'if you were around at the time of something terrible happening like
Nazism, or whatever it happened to be, would you be one of the people who said "no, this is wrong", despite being opposed?'" He also said the trans movement provides "cover" for "fetishists, con men, and simply abusive misogynists". In an interview with the
BBC television programme
Newsnight in February 2020, Linehan said that the
Tavistock Centre's practice of treating children with
puberty blockers such as
Lupron was comparable to
Nazi eugenics and
experiments on children. Following this interview,
Eric Pickles, the
United Kingdom Special Envoy for Post-Holocaust Issues, accused Linehan of
trivialising the Holocaust. In January 2019, Linehan expressed concern over the news that
Mermaids, a charitable advocacy organisation for transgender children and teenagers, was to receive a £500,000 lottery grant to open clinics around the United Kingdom. He posted to the internet forum
Mumsnet encouraging its users to lobby the
National Lottery Community Fund to reverse its decision. The grant was reviewed and went ahead. In response to Linehan, YouTuber
Hbomberguy held a 57-hour fundraising
livestream that raised £270,000 more for Mermaids. The same year, British journalist
Dawn Foster accused Linehan and others of targeting a
National Society for the Prevention of Cruelty to Children (NSPCC) employee who had been responsible for hiring model and activist
Munroe Bergdorf, a transgender woman. Foster called the online abuse "transphobic" and "flatly
homophobic". Journalist Chris Godfrey called the treatment of the employee "insidious homophobia". In June 2020, Linehan criticised comments about author
J. K. Rowling after she made
comments that were described as transphobic. He linked to a blog post featuring screenshots of replies Rowling had received, which Linehan described as abuse, followed by describing those who wrote them as "ignoring the abuse received by women who speak out against gender ideology" and "literally useless".
Hozier, tagged in Linehan's tweets due to his trans-rights advocacy, responded by saying Linehan was conducting an "obsessive little culture war". In December, Linehan evaded the suspension with an account posing as a transgender man. He used the account to call
Colm O'Gorman "a traitor to women, gay people and yourself" for signing an open letter published by the
Transgender Equality Network of Ireland. The account was banned but Linehan said he had created another. In February 2021, Linehan created a fake account on the lesbian dating app
Her and publicly posted screenshots of
non-binary people and trans women using it. The developers of Her clarified that transgender women are welcome on the app. In March 2021, Linehan gave oral evidence to the
Communications and Digital Committee of the
House of Lords on the subject of freedom of expression online, discussing his Twitter ban. In an interview in the
Irish Independent that month, Linehan ruled out working with
Channel 4 again as they would not return the controversial
IT Crowd episode to broadcast, and he said he would not work with the BBC as they had depicted a transgender lesbian couple, which Linehan described as "a heterosexual couple", in a
CBeebies video. In September 2022, Linehan said that his anti-transgender activism had led him to question the
safety of COVID-19 vaccinations and the
scientific consensus on climate change "because I've been lied to so conclusively by all the people I used to trust". In 2022, Linehan wrote articles criticising transgender woman
Mridul Wadhwa's appointment as director of the Edinburgh Rape Crisis Centre, and published part of her home address. Wadhwa stated that being
doxed by Linehan was "the first time she truly feared for her life". In interviews in 2022 and 2023, Linehan said the debate over transgender issues had "consumed his life": it had lost him work, made him financially destitute, and ended his marriage. He said the
Father Ted musical, on which he had been depending financially, was cancelled when the production company decided his involvement would make it impossible to stage. and read out a letter he had written to collaborators saying: "I don't think you all have my back as collaborators or as business partners or as friends. Far from being on the wrong side of history, JK Rowling and I have been proved right over and over again that this is a poisonous ideology that is destroying lives." Linehan blamed
cancel culture for his situation, and said: "Every comedian at the moment is living under a kind of state of permanent blackmail ... There's a few hot-button issues where you have to follow a certain line, and if you don't, you'll be destroyed." In 2023, he denied disliking transgender people, but said using their preferred pronouns was "immoral". He said he did not have a problem with "men calling themselves women" and that "as we keep pointing out, we are only talking about places where conflict arises". Linehan then attacked
Ian "H" Watkins of Steps, tweeting: "What may connect him to a man serving 22 years for raping and torturing a 10-year-old girl?", on the basis that Watkins had used a tool to block transphobes. In April 2023, Linehan was again banned from Twitter, following his appearance at an anti-trans event called Let Women Speak in Belfast, Northern Ireland. He had tweeted the words "Durr imm gonna kill em" in response to a Twitter user who referenced counter-protestors at the Belfast event. Linehan's account was reinstated days later. In July 2023, Linehan tweeted that
David Tennant was an "abusive groomer" after Tennant wore a T-shirt saying "Leave Trans Kids Alone You Absolute Freaks". In August, during the
Edinburgh Festival Fringe, Linehan and other comedians performed a stand-up comedy show outside the
Scottish Parliament after his original venues cancelled his booking over his views. Some supporters of Linehan attended the show and criticised the Edinburgh Fringe as oversensitive. Linehan also threatened to sue the first venue that cancelled his gig. On 1 October, he attended the
Conservative Party Conference in Manchester, stating in a speech that he was "the most cancelled person in this room". On 3 October, he said he had been dropped by his television agent,
Independent Talent, which also represented Tennant. On 12 November 2023, he appeared on
This Week on Ireland's national radio station,
RTÉ, to talk about his claim of being cancelled, defend his anti-trans activism, and to promote his memoir
Tough Crowd.
Legal issues Verbal warning about harassment In 2018, Stephanie Hayden, a transgender woman, sued Linehan for harassment. Hayden alleged that Linehan had shared photos on Twitter of Hayden's family and her life before transition, suggested she was a criminal, and repeatedly
misgendered and
deadnamed her. Linehan in turn alleged that Hayden publicised several private addresses linked to his family to silence him. Police issued Linehan a verbal warning not to contact Hayden.
Crowdfunding campaign to respond to defamation claim In August 2024, Scottish actor
David Paisley brought a
defamation claim against Linehan in the
High Court. Paisley alleged several statements about him on Linehan's
Substack and social media were
defamatory. At a
pre-trial hearing, a judge ruled that several publications about Paisley were potentially defamatory. Linehan said he would prove he had not libelled Paisley during the trial and launched a
crowdfunding campaign for his defence.
Harassment and criminal damage charges In April 2025, Linehan was charged with
harassment and
criminal damage following an incident at the Battle of Ideas conference in London in October 2024. Linehan was charged after posting comments about Sophia Brooks, a 17-year-old transgender activist, calling her a
domestic terrorist and a
groomer, and damaging her phone after confronting her in public and asking how many children she had groomed. In May, Linehan
pleaded not guilty to both charges at
Westminster Magistrates' Court and was
released on bail with a condition not to contact Brooks. Linehan's trial began on 4 September 2025. On 5 September, after having heard evidence over two days, the judge adjourned the trial until 29 October. On 25 November, Judge Clark cleared Linehan of the harassment charge, and said that she was not certain that Linehan had demonstrated hostility based on Brooks's being transgender. Clark found Linehan guilty of criminal damage to Brooks's phone. She fined Linehan £500 and ordered him to pay court costs of £650 and a statutory surcharge of £200.
Arrest for posts on X On 1 September 2025, after arriving at
Heathrow Airport from Arizona, Linehan was arrested on suspicion of
inciting violence. He was questioned in relation to three posts on X, including one in which he posted: "If a trans-identified male is in a female-only space, he is committing a violent, abusive act. Make a scene, call the cops and if all else fails, punch him in the balls." He was briefly hospitalised for high blood pressure and then released without charge on
police bail. He said his bail condition was that he must not post on X; he said the following week that the bail condition had been dropped. Linehan's arrest was criticised by
J. K. Rowling,
Elon Musk, On 8 September, Linehan told the BBC he planned to sue the police for
wrongful arrest and false imprisonment. The controversy over the arrest prompted widespread debate and calls for a change in the law. The Metropolitan Police Commissioner,
Sir Mark Rowley, said that policing "has been left between a rock and a hard place by successive governments", with officers having little discretion over whether to investigate Linehan's tweets. Rowley also said: "I don't believe we should be policing toxic culture wars debates and officers are currently in an impossible position. I have offered to provide suggestions to the Home Office on where the law and policy should be clarified." On 20 October, Linehan was informed that, following an investigation, he would face no further action. == Personal life ==