Lungs Duncan Macmillan Monologue |verified| -

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.

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.

If you’ve been assigned the male monologue from Duncan Macmillan’s Lungs , you already know it’s deceptively simple. Two characters (W and M), no set, no props, just two people in a bare space navigating a high-stakes conversation about having a child. But the monologue often referred to as the “I’m not a bad person” speech (M’s breakdown in the middle of the play) is a beast of anxiety, love, and eco-guilt. lungs duncan macmillan monologue

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

M genuinely believes he’s ethical. He recycles. He worries about carbon footprints. But he’s also selfish, terrified, and paralyzed by first-world problems. The monologue works when you let both truths exist at once: The monologue appears in Act One of Lungs

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

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 monologue isn’t about winning an argument

Here’s how to make it land.