Inside '28 Years Later': The Improvised Scene That Humanized Horror’s Alpha

Unscripted scene reveals unexpected twist in the movie.
Ready for a wild behind-the-scenes scoop from 28 Years Later? When Danny Boyle and Alex Garland brought us back into their post-apocalyptic world, fans didn’t just get rage-infected chaos — they met a terrifying new species called the "Alphas." And guess who stole the show? Samson, the Alpha with quite the presence, who instantly became an internet sensation.
Chi Lewis-Parry, the actor playing Samson, spilled some serious tea in a GQ interview about one unforgettable moment.
"That actual scene, me and Danny discussed on the day. That wasn’t in the script," he said. "Danny wanted a moment on the train before the carnage to show there’s more behind the eyes of this infected person — he isn’t just a head-ripping psychopath."
Together, they created the haunting scene on set where Samson picks up the lifeless body of a pregnant infected woman. Parry explained that they wanted to show a deeper connection — something more human beneath the rage.
It’s these surprise gems that make 28 Years Later stand out. That scene adds a whole new layer to what it means to be "infected" — proving there’s more complexity beneath the rage-fueled chaos. Moments like this are exactly the kind of twists that keep the story unforgettable.