Lungs Duncan Macmillan Monologue May 2026

Here’s how to make it land.

Here’s a helpful blog post tailored for actors, students, or theater lovers looking to understand and perform the “Lungs” monologue by Duncan Macmillan. Cracking the Code of Duncan Macmillan’s “Lungs” – A Guide to the “I’m not a bad person” Monologue lungs duncan macmillan monologue

The monologue appears in Act One of Lungs (published by Oberon Books / Bloomsbury). Watch the Old Vic production with Claire Foy and Matt Smith for a masterclass in stillness and panic. Here’s how to make it land

Lungs works because M is us—educated, anxious, loving, and frozen. The monologue isn’t about winning an argument. It’s about a man realizing that knowing better doesn’t mean doing better. If you can hold that contradiction in your voice and body, you’ll break an audience’s heart. Watch the Old Vic production with Claire Foy

In Lungs , M and W are a couple trying to decide whether to bring a child into an overheating, overpopulated, politically broken world. The monologue happens after W has pushed M to admit his fears. He spirals. This isn’t a villain’s speech or a hero’s declaration—it’s a panic attack wrapped in intellectual guilt.

The key to the monologue is this line: “I’m not a bad person.”