2011–2016: early roles Lawther's professional debut came at the age of 16, when he appeared as John Blakemore in
Sir David Hare's
South Downs at
Chichester Festival Theatre. Lawther found out about an open audition for the play through his school, as the casting directors were scouting real students attending elite private schools in the
South Downs for the play's public school setting. He travelled to London, where he beat hundreds of other young actors for the lead role. After a local trial run, the play then went to the
West End, where he performed the role at the
Harold Pinter Theatre in sold out runs whilst still studying for his A Levels. Lawther received his
breakthrough film role as a young
Alan Turing during his time at
Sherborne School in the
Academy Award-winning film
The Imitation Game (2014), with
Benedict Cumberbatch portraying the older Turing. The role won him the
London Film Critics' Circle Award for "Young British Performer of the Year". Subsequently, he appeared in a supporting role as a maths prodigy in the critically acclaimed coming-of-age drama film
X+Y, alongside
Asa Butterfield and
Sally Hawkins. He also starred as a young
castrato in
Virtuoso, a pilot produced for
HBO by
Alan Ball, but the show was not picked up by the network. He returned to the theatre doing various small productions in London during this period, playing a sexually precocious young gay man in
The Glass Supper, and the lead in the
post-apocalyptic Crushed Shells and Mud. In 2015, he starred alongside
Juliet Stevenson in his first lead film role, playing Elliot in the British film,
Departure, the debut film of director Andrew Steggall, filmed in a mixture of French and English.
2016–present: wider recognition to promote
Alien: Earth In 2016, Lawther played the main character Kenny in "
Shut Up and Dance", an episode from series three of the British
science fiction anthology series Black Mirror. While the episode overall received mixed reviews, he received universal acclaim and significant recognition for his performance. He also performed in the
mockumentary film
Carnage, directed by his frequent collaborator, comedian
Simon Amstell. In 2017, Lawther played Tibby Schlegel in
Howards End, a
BBC One adaptation of the
E.M. Forster novel that starred
Hayley Atwell, as well as the lead role of Billy Bloom in
Trudie Styler's
Freak Show, where he was supported by
Bette Midler,
Abigail Breslin,
AnnaSophia Robb,
Lorraine Toussaint and
Larry Pine.
Freak Show marked his first (and thus far only) appearance in an
American film. Later that same year, he also starred, alongside
Jessica Barden, as James in the
Peabody Award-winning television series
The End of the F***ing World. The role also brought Lawther more acclaim from critics and further raised his profile in the entertainment industry. He would go on to reprise this role during the show's second and final season, which received a
BAFTA Award for Best Drama. He also originated the role of Sam in the
Stephen Daltry-directed play
The Jungle, which focused on the refugee crisis in
Calais, in both its London and New York productions. Lawther spent time in France meeting with refugees for this job, and ultimately found it to be one of his most challenging roles due to his character's
right-wing views which were antithetical to his own. Subsequently, Lawther played the lead role of Amberson in Toby MacDonald's debut film
Old Boys, as well as a supporting role in the horror film
Ghost Stories. In 2020, Lawther played the lead role in Régis Roinsard's thriller,
Les Traducteurs (The Translators), his first non-English language film. As a result of fans of both Lawther and English singer-songwriter
Declan McKenna frequently pointing out their resemblance, Lawther made an appearance in the music video for McKenna's song "
The Key to Life on Earth". In 2021, Lawther appeared in
Ridley Scott's
The Last Duel,
Wes Anderson's
The French Dispatch, and
Lucile Hadzihalilovic's
Earwig. He starred as
Ariel in a French production of
Shakespeare's
The Tempest at
Les Bouffes du Nord directed by
Peter Brook and
Marie-Hélène Estienne and replaced
Andrew Scott in the titular role of
Hamlet when
Robert Icke's adaptation was brought to
New York City, after previously being delayed due to the
COVID-19 pandemic. He appeared in the
Star Wars spin-off series
Andor as rebel operative Karis Nemik. In 2022 he provided the voice of Abacus Woodlouse in
Aardman Animations'
Lloyd of the Flies and in 2023 he also voiced of Bird-Bee and Mr. Beak-Bee in
Adventures of ArachnoFly,
Lloyd of the Flies' spin-off.
Directing In 2021, Lawther made his directorial debut with the music video for "Fountainhead" by Linus Fenton, starring
Roman Griffin Davis and sponsored by
CALM. In 2022, he wrote and directed the short film
For People in Trouble, produced by
Ben Affleck and
Matt Damon and starring
Emma D'Arcy and
Archie Madekwe. His short film
Rhoda, starring
Emma D'Arcy and
Juliet Stevenson was selected for the
BFI London Film Festival in 2024. ==Personal life==