The cape. The shield. The unwavering optimism. When the Supergirl television series first took flight, it didn’t just introduce a new hero to the small screen; it revitalized the concept of what a modern superhero could be. While her famous cousin often carries the weight of the world on his shoulders with a stoic grimace, Kara Zor-El brought something different to the table: a vibrant, vulnerable, and fiercely determined humanity. This series serves as a cornerstone of modern televised myth-making, blending high-stakes extraterrestrial action with the grounded, everyday struggles of a young woman finding her voice in a sprawling metropolis.
For the uninitiated, the show is more than a simple spin-off. It is a sprawling epic that explores themes of identity, sisterhood, and the immigrant experience through the lens of a Girl of Steel. Whether you are a veteran of the “Arrowverse” or a newcomer curious about the light shining from National City, understanding the core pillars of this show is essential. From its groundbreaking casting choices to its complex political allegories, the series stands as a testament to the enduring power of the House of El.
10 Things You Should Know About Superman – DC Comics
1. The Casting of a Legend: How Melissa Benoist Redefined Hope
Finding an actor to portray a Kryptonian is no small feat. You need someone who can plausibly bench-press a bus while simultaneously projecting the kind of warmth that makes a child feel safe. Melissa Benoist didn’t just play Supergirl; she inhabited the dual identity of Kara Danvers with a seamless grace that anchored the entire series. Her portrayal moved away from the “aloof god” trope, instead giving us a hero who dorks out over potstickers, struggles with office politics, and feels the sting of heartbreak as deeply as any human.
Benoist’s background in musical theater proved to be a secret weapon for the production. It gave her a physical discipline and a rhythmic timing that translated beautifully into the show’s action sequences and its lighter, comedic moments. Her version of Kara is defined by “hope, help, and compassion for all,” a mantra that Benoist delivered with a sincerity that never felt saccharine. By making Kara relatable—even when she was freezing a tidal wave with her breath—Benoist ensured that the audience wasn’t just watching a spectacle; they were rooting for a friend.
2. A Tale of Two Networks: The Journey from CBS to The CW
One of the most fascinating aspects of the show’s production history is its literal change of scenery. The series initially debuted on a major broadcast network, CBS, where it enjoyed a high-gloss, big-budget aesthetic. However, after its first season, the production moved to The CW, a shift that fundamentally altered the DNA of the series. This move allowed the show to fully integrate into a larger shared universe, bringing Kara into the fold of a burgeoning superhero community.
This transition was more than just a logistical change; it influenced the storytelling style. On The CW, the show embraced its comic book roots even more fervently. The sets became more familiar, the crossovers became more frequent, and the tone shifted to match the high-energy, serialized nature of its peer shows. While the move necessitated some creative budgeting—like moving the production from Los Angeles to Vancouver—it ultimately gave the show a permanent home where it could lean into its identity as a premier sci-fi drama without the pressure of “traditional” network expectations.
3. The Power of the Danvers Sisters: The Show’s Emotional Engine
While the flashy powers and alien threats grab the headlines, the true heart of the series is the relationship between Kara and her adoptive sister, Alex Danvers. This bond is the “True North” of the show, providing an emotional grounding that no Kryptonian technology could replicate. Unlike many superhero stories where the hero’s family is either a secret to be kept or a tragedy to be mourned, Alex is Kara’s partner-in-arms, a high-ranking government agent who protects her sister just as much as the superhero protects the city.
The chemistry between Melissa Benoist and Chyler Leigh (who portrays Alex) is the series’ greatest asset. Their “couch scenes”—moments where they decompress after a long day of saving the world—offer some of the most poignant writing in the show. Through their relationship, the series explores themes of loyalty, coming out, and the sacrifices made for family. It presents a version of sisterhood that is supportive yet challenging, proving that even a woman who can survive a nuclear blast still needs her big sister to tell her the truth.
4. The Martian Manhunter: A Masterclass in Subverting Expectations
In the early episodes of the series, the character of Hank Henshaw appeared to be the typical “grumpy government boss” trope. However, the show pulled off one of the most celebrated twists in modern superhero television by revealing that Henshaw was actually J’onn J’onzz, the Martian Manhunter. This revelation transformed the show from a solo hero story into a surrogate family drama. J’onn became a father figure to both Kara and Alex, offering a perspective of a “refugee from a lost world” that mirrored Kara’s own journey.
Portrayed with soulful gravitas by David Harewood, the Martian Manhunter brought a level of psychological depth to the DEO (Department of Extranormal Operations). His presence allowed the show to explore the isolation of being the “last of one’s kind” and the struggle to maintain one’s identity in a world that fears the “other.” The visual effects used to bring his Martian form to life were ambitious for television, but it was the quiet, human moments—J’onn sharing a coffee or offering stoic advice—that made him an indispensable part of the series’ mythology.
5. National City: A Sunnier Alternative to Metropolis and Gotham
If Metropolis is the “City of Tomorrow” and Gotham is the “Urban Nightmare,” National City is the “City of Bright Horizons.” The setting of the show plays a crucial role in its atmosphere. It is a place characterized by glass, sunlight, and a sense of upward mobility. The city feels alive, populated by diverse characters who aren’t just there to be saved, but who actively participate in the city’s narrative. This environment reflects Kara’s own personality: bright, optimistic, and transparent.
The architecture of National City—from the soaring heights of CatCo Worldwide Media to the underground bunkers of the DEO—provides a varied playground for superhero action. By carving out its own distinct location, the series escaped the shadow of the larger DC cities. National City allowed for a unique supporting cast, such as the media mogul Cat Grant, to flourish. This setting reinforced the idea that Supergirl wasn’t just a “female Superman” operating in his territory; she was a hero with her own jurisdiction, her own challenges, and her own distinct vibe.
6. The Transformation of James Olsen: Beyond the Camera
In traditional lore, Jimmy Olsen is often depicted as Superman’s “pal”—a plucky, somewhat bumbling photographer. The series took a bold step by reimagining him as James Olsen, a suave, confident, and physically imposing media professional portrayed by Mehcad Brooks. This James wasn’t just a sidekick; he was a mentor and a romantic lead who eventually forged his own path as the vigilante known as Guardian. This evolution was part of the show’s commitment to modernizing legacy characters for a contemporary audience.
The decision to give James a superhero mantle of his own allowed the series to explore the perspective of a human hero operating in a world of “supers.” It also opened the door for meaningful discussions about race and justice, as James navigated the complexities of being a Black man in a position of both media power and masked vigilantism. By breaking the mold of the “sidekick” trope, the series gave James Olsen a level of agency and gravitas that redefined the character for a new generation of fans.
7. The DEO: Modernizing the Superhero Infrastructure
Superheroes in the 21st century rarely work alone, and Kara Danvers is no exception. The Department of Extranormal Operations (DEO) serves as the tactical backbone of the series. This secret government agency, tasked with monitoring and subduing alien threats, provides a procedural element to the show. It’s where science meets combat, and it serves as the primary workspace for Alex Danvers and Winn Schott, the show’s resident tech genius and Kara’s closest confidant in the early seasons.
The DEO is a fascinating narrative device because it places Supergirl within a legal and tactical framework. It forces the characters to navigate the ethics of government surveillance and the fine line between protection and overreach. As the series progresses, the DEO itself undergoes various leadership changes and ideological shifts, reflecting the changing political landscape of the world. It provides the gadgets, the “tech-speak,” and the tactical support that allow Kara to take on threats that strength alone cannot solve, making the show feel like a blend of The X-Files and Superman.
8. Social Commentary: Using Sci-Fi to Reflect Reality
One of the hallmarks of great science fiction is its ability to use alien metaphors to discuss real-world issues, and the series leans into this with gusto. Throughout its run, the show tackles themes of immigration, xenophobia, and media ethics. The “alien” presence in National City is often used as a direct allegory for marginalized groups in society. When the city’s residents react with fear or prejudice toward extraterrestrials, the show is asking the audience to examine their own biases.
This isn’t a show that shies away from its politics. It features diverse representation across its main and supporting casts, including the introduction of Nia Nal (Dreamer), the first transgender superhero on television. By integrating these social themes into the plot—rather than making them “special episodes”—the series creates a world that feels urgent and relevant. It posits that being a hero isn’t just about punching a villain; it’s about standing up for the marginalized and using your platform to advocate for a more inclusive world.
9. A Rogues’ Gallery of Intellect and Might
While many superhero shows rely on “villains of the week,” this series excels at creating multi-season antagonists with complex motivations. The show features legendary figures like Lex Luthor, brought to life with a chilling, manipulative charisma by Jon Cryer. This version of Lex isn’t just a billionaire with a grudge; he is a master strategist who uses the law and public perception as weapons. His presence raises the stakes, forcing Kara to fight a battle of wits rather than just a battle of brawn.
Beyond the Luthors, the show explores cosmic threats like the Worldkillers (led by the tragic figure Reign) and the technological menace of Brainiac 5 (who eventually becomes a core ally). These villains are often mirrors of Kara’s own struggles. They represent what happens when power is used without compassion or when heritage is used as a justification for cruelty. By providing Kara with enemies that are intellectually and emotionally challenging, the show ensures that her victories feel earned and her growth as a hero feels continuous.
10. The House of El: “Stronger Together”
The ultimate theme of the series is encapsulated in the Kryptonian motto of the House of El: El Mayarah, which translates to “Stronger Together.” This philosophy permeates every aspect of the show. While Kara possesses god-like abilities, she is at her most powerful when she is surrounded by her “Super Friends.” The series rejects the trope of the “lone wolf” hero, instead celebrating the strength found in community, friendship, and collective action.
This message is the show’s lasting legacy. It teaches that even the most powerful person in the room needs support, and that vulnerability is not a weakness but a bridge to connection. Whether it’s the DEO team coordinating a city-wide defense or a simple moment of comfort between friends, the show constantly reinforces the idea that we are better when we work in unison. In a landscape often filled with gritty, cynical heroes, this series stands as a beacon of the “Silver Age” spirit, updated for a modern world that desperately needs to believe in the power of togetherness.
Further Reading
- Supergirl: Being Super by Mariko Tamaki and Joëlle Jones
- Supergirl: Woman of Tomorrow by Tom King and Bilquis Evely
- The Art and Making of The Flash, Arrow, and Supergirl by Abbie Bernstein
- Girl on Steel: Essays on Supergirl and its Adaptations by various contributors
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