‘Lanterns’ New Guy Gardner Promo Leans Into the Character’s Funniest Secret

HBO’s ‘Lanterns‘ has spent months building anticipation with a steady rollout of trailers and cast interviews, slowly revealing how this new take on the Green Lantern mythos fits into the wider DC Universe. Most of that attention has understandably centered on Hal Jordan and John Stewart, the two leads carrying the murder-mystery-driven series.

Guy Gardner has largely stayed on the periphery of that conversation, popping up as a familiar face already established elsewhere in the DCU. A newly released promo is finally putting him front and center, and it leans directly into one of the character’s most amusing quirks.

Nathan Fillion’s Guy Gardner has a civilian identity that doesn’t exactly scream superhero: he works as a gym teacher. The new clip plays off that day job for laughs, joking that he’s less “Athletic Director” and more simply “Lantern” once the mask comes off.

Everyone's favorite gym teacher… sorry, Athletic Director… sorry, Lantern.

A new Guy Gardner promo for ‘LANTERNS’ just dropped. pic.twitter.com/c8tbhA43Lm

— DC Film News (@DCFilmNews) September 18, 2026

Fillion’s version of the character has already appeared in the DCU prior to ‘Lanterns,’ having shown up in both ‘Superman’ and ‘Peacemaker’ before getting his own dedicated spotlight in this series. That prior groundwork means audiences walking into ‘Lanterns’ already have some familiarity with his brash, self-assured personality, even if his day job as a gym teacher adds a new layer of grounded humor to the character.

That civilian cover fits the show’s overall approach, which trades cosmic spectacle for something closer to a small-town crime drama. ‘Lanterns’ follows Hal Jordan, played by Kyle Chandler, and John Stewart, played by Aaron Pierre, as they investigate a homicide in rural Nebraska that ends up uncovering a much larger conspiracy tied to the Green Lantern Corps.

The series unfolds across dual timelines, with one strand set in 2016 showing Stewart only 2 months into his training as he joins a more experienced Jordan investigating an alien-related shooting. A second timeline jumps forward to show Stewart roughly a decade into his tenure as a Green Lantern, giving the show room to explore both his origin and his growth as a hero over time.

Ulrich Thomsen also factors into the mythology as Sinestro, described as Hal Jordan’s former mentor who was defeated and kicked out of the Corps after attempting a coup. The Guardians of the Universe reportedly remain wary of what Hal may have absorbed from that relationship, adding another layer of tension to the show’s central duo.

Chandler and Pierre have described their onscreen dynamic in surprisingly down-to-earth terms, comparing their chemistry to a classic comedy duo built around contrasting energy, with wisdom on one side and youthful drive on the other. That grounded tone extends to the show’s visual style and storytelling approach, which creators have positioned as more prestige detective drama than traditional superhero spectacle.

Guy Gardner’s inclusion, gym whistle and all, reinforces that same sensibility. Rather than treating every Green Lantern as an interchangeable cosmic warrior, ‘Lanterns’ seems intent on giving each character a distinct, relatable identity back on Earth before the rings ever start glowing.

That philosophy also explains why Fillion’s casting has generated so much goodwill among fans. Rather than simply importing his established DCU persona wholesale from his earlier appearances, the show is using ‘Lanterns’ as an opportunity to flesh out a fuller version of who Guy Gardner is when he’s not out patrolling space, giving the character room to be genuinely funny rather than just a recurring cameo.

With the series now streaming on HBO Max, promos like this latest Guy Gardner spot suggest the show isn’t done mining its ensemble for both laughs and larger mythology reveals. Between Sinestro’s looming presence and Stewart’s ongoing training arc, there’s plenty of story left to unpack as ‘Lanterns’ continues its run.

The show’s supporting cast extends well beyond its central trio as well, with Kelly MacDonald, Garrett Dillahunt, Nicole Ari Parker and Jason Ritter all playing roles tied to the Nebraska murder mystery driving the plot forward. That deep bench of talent underscores just how seriously the series is treating its crime-drama framing, even as it slowly reveals the larger cosmic stakes lurking underneath.

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