Luis o'zining aktyorlik debyutini RSC tomonidan ishlab chiqarilgan va Matthew Warchus tomonidan boshqarilgan "Matilda the Musical" musiqiy asarining Olivier mukofoti sohibi Original West End tarkibida Erik roli bilan boshlagan. Keyinchalik, u Sam Mendes boshchiligida "Charlie and the Chocolate Factory" asarining Original West End tarkibida Charlining bosh rolini o'ynash imkoniyatiga ega bo'ldi. Uning birinchi kino tajribasi Ben Wheatley tomonidan suratga olingan "High Rise" filmida Toby rolini o'ynashdan iborat bo'lib, unda Tom Hiddleston, Sienna Miller, Jeremy Irons va Luke Evans ishtirok etgan. Shundan so'ng, u Alex Helfrecht va Jorg Tittel tomonidan suratga olingan "White King" filmida Bruno roliga, keyin esa Martha Coolidge boshchiligida "Music War and Love" filmida yosh Vlad roliga tanlandi. Boshqa ishlari orasida HIT televideniye animatsion seriyasida Edward sifatida va "Game of Thrones" kompyuter o'yinida Ryon Forrester sifatida ovoz berish rollari mavjud.
