Since its inception in 1995, the Toy Story franchise has served as the gold standard for character-driven animation. From the existential crises of Woody and Buzz Lightyear to the introduction of fan favorites like Jessie, Bullseye, and the neurotic Forky, Pixar has consistently managed to weave plastic and plush into the fabric of our collective cultural consciousness. Now, as the franchise gears up for its fifth installment, a new contender for the title of "best character" has emerged—and he’s an unlikely potty-training toy voiced by the legendary Conan O’Brien.
The Evolution of the Toy Story Ensemble
To understand the significance of the newest arrival, one must look back at the pedigree of the series. Every chapter in the Toy Story saga has utilized its new characters not just as toys, but as metaphors for the changing landscape of childhood. Toy Story 2 expanded the universe with the tragic backstory of Jessie and the villainous aspirations of Stinky Pete. Toy Story 3 introduced a diverse cast ranging from the whimsical Mr. Pricklepants to the deceptively cuddly Lotso Huggin’ Bear. Toy Story 4 challenged the very definition of "toy" with Forky.
In Toy Story 5, the narrative shifts toward the tension between classic play and the digital age. The primary conflict finds Jessie and her companions facing an "invasion" of technology, epitomized by a new, tablet-like device named Lilypad (voiced by Greta Lee). Yet, amidst this high-tech anxiety, the film finds its heart in the form of Smarty Pants, a Fisher-Price-inspired potty-training toy who is as hilariously tragic as he is memorable.
Chronology of a Character’s Conception
The road to Smarty Pants was far from a straight line. According to production designer Bob Pauley, the character’s design process was an exercise in creative trial and error. The initial brainstorming sessions struggled to find a balance between a functional potty-training tool and a character capable of emotional expression.
"Originally, we were calling him ‘Mr. Smarty Pants,’" Pauley explained during a recent press preview. "We were drawing various versions of pants, but it was incredibly challenging. How do you give a pair of pants a personality? Where do the eyes go? It felt strange, almost disconnected."

The design team, including acclaimed character designer Deanna Marsigliese, attempted to pivot by incorporating direct toilet imagery—lids, basins, and flushing mechanisms—into the character’s anatomy. However, these iterations failed to resonate with the team, as they leaned too heavily into the "utility" of the object rather than the "soul" of a character.
The breakthrough occurred in the summer of 2023, during Pixar’s renowned internship program. Two students, Lily and Naomi, were tasked with exploring character concepts. It was Naomi who provided the definitive sketch. "Naomi did this sketch, and she kind of drew the first Smarty Pants in the way he looks now," Pauley noted. "He evolved, we developed him further, but that was an intern at our studio for 12 weeks. She cracked the code."
Supporting Data: Why Smarty Pants Works
What makes Smarty Pants an instant classic is the confluence of design and performance. By the time the film reaches the screen, the character is depicted as a relic of a bygone era in the bedroom of a girl named Blaze. Because Blaze is now nine years old, the toy—designed for a toddler—has been relegated to the corner of a neglected playhouse.
The design team intentionally leaned into the "nostalgia factor" to make him feel distinct from the sleek, modern technology like Lilypad. By utilizing a dated LCD screen and clunky, primary-colored buttons, the team gave him the look of a toy that has survived years of abandonment.
This physical decay is mirrored perfectly by Conan O’Brien’s vocal performance. When Jessie encounters him, Smarty Pants is operating on low batteries, resulting in a slurred, erratic cadence that O’Brien executes with masterful comedic timing. He sounds like a toy that has spent too much time in solitary confinement, waiting for a user who outgrew his specific, bathroom-centric function.

Official Responses and Behind-the-Scenes Insights
Pixar’s creative leadership has been vocal about how surprised they were by the final result. While the script provided the framework for the character, the marriage of O’Brien’s iconic, high-energy delivery with the animation team’s physical choices created something far greater than the sum of its parts.
"It’s exciting when you see animation get ahold of Smarty Pants and start figuring out how he moves," Pauley shared. "And then you put Conan’s voice to it, and it’s mind-blowing. It was super fun."
O’Brien, who is widely celebrated for his contributions to The Simpsons and his long-running late-night career, brings a unique "chaotic energy" to the role. For the production team, the character is not just a joke; he is a centerpiece of the film’s second act. Sources close to the production suggest that while the first half of the film introduces the cast, Smarty Pants becomes increasingly integral as the story progresses, potentially serving as a pivot point for the emotional climax of the movie.
Implications for the Pixar Franchise
The inclusion of Smarty Pants signals a return to the "found toy" aesthetic that defined the earlier entries of the franchise. By juxtaposing a low-tech, potty-training toy against a high-tech tablet, Toy Story 5 is clearly commenting on the rapid obsolescence of childhood items in the 21st century.
The character also highlights the importance of Pixar’s collaborative, multi-generational studio culture. The fact that a summer intern’s design provided the backbone for a major franchise character is a testament to the studio’s commitment to fresh perspectives. It effectively democratizes the creative process, ensuring that the characters represent a wide range of generational memories.

Furthermore, the casting of O’Brien represents a shift in how Pixar handles "comic relief." Unlike previous characters who were designed purely for slapstick, Smarty Pants is grounded in a specific, slightly tragic history. His desire to be useful, combined with his limited vocabulary, creates a character that is easy to laugh at but equally easy to empathize with.
Conclusion: A New Legacy
As fans await the June 19, 2026, release date, the buzz surrounding Toy Story 5 has shifted from skepticism about continuing a "complete" series to genuine excitement about the new additions. With the combination of a poignant design origin story, a masterclass in vocal performance by Conan O’Brien, and a narrative that explores the bittersweet nature of growing up, Smarty Pants is poised to join the ranks of the most beloved Pixar creations.
The film promises to be a reflection on what it means to be left behind, but in the case of Smarty Pants, it seems that being forgotten was exactly what he needed to finally find his voice. If the early screenings are any indication, the audience will find themselves laughing—and perhaps tearing up—at the little potty-training toy who, despite his humble beginnings, has become the biggest surprise of the summer.







