The Perfect Faux Finale: Why 'Dexter, Last But Not Beast' Remains The True Ending Of Dexter's Laboratory

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As of late 2025, the episode "Last But Not Beast" is experiencing a massive resurgence in discussion among animation fans, nearly three decades after its original broadcast. This seemingly innocuous season finale from 1998 is not just another episode of *Dexter's Laboratory*; it is widely considered by creators and viewers alike to be the definitive, perfect ending to the iconic Cartoon Network series. The episode’s enduring legacy stems from its ambitious, feature-length scope, its unexpected international setting, and a climactic twist that perfectly encapsulates the show's core relationship dynamics. This deep dive explores the episode's production, its status as a "series fauxnale," and why its themes—particularly the idea that Dexter's sister, Dee Dee, is his ultimate, unwitting savior—make it a masterpiece of 90s animation. The title itself, a clever pun on the phrase "last but not least," hints at the epic scale of the adventure, which saw the Boy Genius face a foe far larger than his rival, Mandark.

The Creative Team and Episode Biography

The episode "Last But Not Beast" is a landmark in the history of *Dexter's Laboratory*, marking the conclusion of the show's original production run under the direct supervision of its core creative team. * Original Air Date: June 15, 1998 * Season: Season 2, Episode 39 (of the original production run) * Writers/Story: Genndy Tartakovsky, Craig McCracken, and Paul Rudish * Director: Genndy Tartakovsky * Setting: Japan (Tokyo) * Plot Summary: Dexter participates in a student exchange program in Japan. While attempting to show off his latest robot suit to his new classmates, he accidentally releases a giant, axe-headed monster (a clear *kaiju* parody) from a temple. The monster begins to rampage through Tokyo, forcing Dexter to build increasingly large and complex robots to stop it. In the end, it is Dee Dee and Monkey who inadvertently save the day, leaving Dexter and Mandark to mistakenly take credit for the victory. * Significance: It was the final episode produced before the show went on hiatus and before the TV movie *Ego Trip* (1999) and the eventual revival seasons (2001–2003). It is retrospectively viewed as the "Grand Finale" or "Series Fauxnale." The collaboration between Genndy Tartakovsky (creator of *Samurai Jack*), Craig McCracken (creator of *The Powerpuff Girls*), and Paul Rudish (later a key creative on *Mickey Mouse* shorts) solidified this episode's place as an animation powerhouse.

Why 'Last But Not Beast' Was the Perfect Intended Finale

The widespread consensus among animation critics and fans is that "Last But Not Beast" functions as a superior and more thematically satisfying conclusion than the later seasons or even the TV movie *Ego Trip*. The episode masterfully brings together and resolves the show’s most important thematic elements.

The Ultimate Deconstruction of Dexter's Ego

Throughout the series, Dexter's greatest flaw is his overwhelming ego and his inability to acknowledge the competence of anyone else, especially Dee Dee. The episode takes him out of his comfort zone—his secret laboratory—and places him in a high-stakes, international crisis in Japan, a setting that pays homage to classic *kaiju* films. His attempts to defeat the monster (the "Beast" of the title) are a series of spectacular failures, each one requiring a larger and more complex machine, yet none successful. This narrative arc serves to completely deconstruct the idea that Dexter's intellect alone is sufficient to solve every problem.

The Unsung Heroes: Dee Dee and Monkey

The true genius of the episode lies in its resolution. The monster is not defeated by Dexter's massive, world-saving robot, but by the combined, accidental efforts of Dee Dee and Monkey (Dexter's super-powered pet). Dee Dee, in her typical whimsical, ballet-dancing fashion, distracts the monster, while Monkey, in his superhero alter-ego, delivers the final, decisive blow. This twist is a perfect thematic conclusion because it reinforces the central, ironic truth of *Dexter's Laboratory*: that the chaos and spontaneity of Dee Dee and the hidden power of Monkey are often more effective than Dexter’s meticulously planned science. The final shot of Dexter and Mandark arguing over who *actually* defeated the monster, while Dee Dee and Monkey share a knowing glance, provides a beautiful, full-circle moment for the series.

A True Cartoon Network Classic

The episode is a prime example of the creative freedom and quality of the early "Cartoon Cartoons" era. Its length (a double-length episode) and cinematic scope allowed the creators to deliver a story with genuine emotional weight and spectacular action sequences. It successfully wraps up the show's core dynamic—the eternal rivalry between science and chaos—without requiring a definitive end to the laboratory. Instead, it concludes with an affirmation of the status quo, but with a new, profound understanding: Dexter will continue his science, but the universe (represented by Dee Dee) will always find a way to balance it out.

The Legacy and Retrospective View in Modern Fandom

Despite the production of a third and fourth season (which featured a controversial shift in animation style and voice acting) and the movie *Ego Trip*, the legacy of "Last But Not Beast" remains untouched. It is consistently cited in modern retrospectives as the true conclusion of the show's golden age.

The "Fauxnale" Phenomenon

"Last But Not Beast" is a classic example of a "Series Fauxnale"—an episode that functions perfectly as a series finale but is followed by later, often less-regarded, seasons. Fans often recommend watching this episode as the final viewing experience to preserve the intended creative vision of Genndy Tartakovsky, Craig McCracken, and Paul Rudish. The episode's high production value, the memorable guest appearance of the *kaiju* monster, and its deeply satisfying character resolution ensure its place in the pantheon of great 90s cartoon episodes, a testament to the power of a well-written, thematically rich conclusion, even if the network later decided to continue the story.

Key Entities and Topical Authority

The episode weaves together several crucial elements of the *Dexter's Laboratory* universe and 90s pop culture: * Dexter: The Boy Genius, whose hubris is challenged. * Dee Dee: The Agent of Chaos, who is revealed as the uncredited hero. * Mandark: Dexter’s rival, whose attempt to steal the glory is thwarted. * Monkey: The secret superhero, Agent Honeydew, who saves the day. * Cartoon Network: The home of the "Cartoon Cartoons" block. * Genndy Tartakovsky: The series creator, whose vision is fully realized here. * Craig McCracken & Paul Rudish: Key creative forces behind the episode's story. * Kaiju: The giant monster genre that the episode parodies. * Japan: The exotic, high-tech, and monster-filled setting. * Ego Trip: The eventual, official TV movie finale that many fans still overlook in favor of "Last But Not Beast." The enduring appeal of "Dexter, Last But Not Beast" is a powerful reminder that sometimes, the most perfect ending is the one that was planned, not necessarily the one that was last.
The Perfect Faux Finale: Why 'Dexter, Last But Not Beast' Remains the True Ending of Dexter's Laboratory
dexter last but not beast
dexter last but not beast

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