Johnny Pemberton plays Thaddeus in Prime Video’s Fallout. This guide focuses on the performance, the character’s story, and the episodes in which the role appears, with spoilers clearly separated from the introductory material.
Who Johnny Pemberton plays in Fallout
Thaddeus begins as part of the Brotherhood’s bullying hierarchy, but the show quickly turns the joke around once he becomes vulnerable and dependent on people he once mistreated.
The character page for Thaddeus follows the story itself, while this page stays centered on Johnny Pemberton and how the role is presented on screen. Keeping the two pages separate makes it easier to explore the series without forcing an actor biography and a spoiler-heavy character history into the same article.
The performance
Thaddeus enters as a bully inside the Brotherhood hierarchy, then becomes increasingly vulnerable once the same institution stops protecting him. Pemberton’s nervous energy turns that reversal into comedy and sympathy at the same time.
Thaddeus shows how quickly status can change in the wasteland. He is also one of the clearest examples of Fallout turning a running joke into a continuing character arc.
Thaddeus across the series
Season 1
Season 1 sends Thaddeus on the artifact hunt and eventually into an encounter with the Snake Oil Salesman. The treatment he receives appears to make him unusually resistant to injury, suggesting that he is becoming a ghoul.
Season 2
Season 2 follows that transformation and places Thaddeus back beside Maximus during the Brotherhood’s internal crisis. His survival instincts and comic panic continue to make him an unpredictable companion.
Johnny Pemberton Fallout episode guide
The table below links directly to the episode guides for the appearances tracked by this site. Each episode page has its own recap, cast-and-character links, music list, sources, and previous/next navigation.
| Episode | Title | Release date |
|---|---|---|
| S1E1 | The End | April 10, 2024 |
| S1E3 | The Head | April 10, 2024 |
| S1E5 | The Past | April 10, 2024 |
| S1E7 | The Radio | April 10, 2024 |
| S1E8 | The Beginning | April 10, 2024 |
| S2E3 | The Profligate | December 31, 2025 |
| S2E4 | The Demon in the Snow | January 7, 2026 |
| S2E6 | The Other Player | January 21, 2026 |
| S2E7 | The Handoff | January 27, 2026 |
| S2E8 | The Strip | February 3, 2026 |
Career beyond Fallout
Pemberton is a comedian and actor known for television work including Superstore. Fallout uses his comic timing without isolating Thaddeus from the show’s more serious consequences.
This section is intentionally concise. Vault-Tec.com’s coverage is designed around the television series, so the strongest internal links point to the role, the episodes and the broader cast guide rather than stretching a series-focused page into an unrelated filmography database.
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Editorial note: episode credits and series details are checked against the linked sources. Page updated August 19, 2026. Quotations are included only when a source supports the wording and attribution.
