Who played Harley Quinn in Suicide Squad?

When David Ayer announced in 2014 that Harley Quinn would appear in Suicide Squad, the debate immediately set the DC community on fire. Which actress could embody this extraordinary character — a psychiatrist turned criminal, the Joker's toxic lover, a pop culture icon as much as a comic book character? Ten years later, the casting of Margot Robbie remains one of the most decisive in the entire DCEU. This article explores the reasons behind that casting, the performance delivered, and the cultural impact that followed.

To place this moment within Gotham's broader mythology, a detour through the complete profile of Harleen Quinzel and her criminal alter ego is essential — without knowing her comic origins, it's hard to understand why Margot Robbie's casting mattered so much.

Who is Harley Quinn? The character before the actress

Harley Quinn is a late creation in the Batman universe. First appearing in Batman: The Animated Series in 1992, she was born from the imagination of Paul Dini and Bruce Timm. Her biography is fascinating: Harleen Quinzel is a brilliant young psychiatrist, hired at Arkham Asylum to treat Gotham's most dangerous criminals. Over the course of her sessions with the Joker, she gradually crosses to the other side of the looking glass, becoming a criminal herself in the service of the Clown Prince of Crime. To delve deeper into this topic, also see Harley Quinn and Poison Ivy: the story of Gotham's most iconic duo. To delve deeper into this topic, also see Harley Quinn's weapons: mallet, bat, and the anti-heroine's arsenal. To delve deeper into this topic, also see Does Harley Quinn have powers? The anti-heroine's true abilities.

This psychiatric transformation is one of the most disturbing arcs in all of DC mythology. Harleen wasn't manipulated by chance — she gradually accepted it, out of narcissistic fragility and a need for validation. This psychological dimension makes her an infinitely more complex character than a mere criminal sidekick. To explore her trajectory in full, a detour through the Batfamily and the figures of Gotham is illuminating — Harley occupies a unique position, neither truly an enemy nor truly an ally.

Visually, Harley has also undergone a major transformation. The black-and-red diamond-patterned costume and the clown makeup of the 90s comics have given way to a more modern aesthetic in recent arcs — ripped t-shirt, denim shorts, baseball bat. This modernization preceded and paved the way for the 2016 film adaptation.

The choice of Margot Robbie: a strategic casting

When David Ayer was looking for his Harley for Suicide Squad, several actresses were initially considered. According to the rumors of the time, Amanda Seyfried, Emma Stone, Rebecca Hall, Jennifer Lawrence, and Kristen Wiig were all mentioned. But it was Margot Robbie, then known primarily for The Wolf of Wall Street (2013), who landed the role.

Several factors explain this choice. First, her particular charisma — a blend of apparent fragility and underlying threat, perfect for the character. Second, her ability to switch between comedic and dramatic registers. Third, her versatile physique, able to embody both Harleen the psychiatrist and Harley the criminal. Fourth, and probably the decisive factor, her willingness to commit to the role long-term. To delve deeper into this topic, also see Punchline: the Joker's new accomplice who is definitely not a second Harley Quinn.

This last point is crucial. Margot Robbie didn't sign on for a single film — she agreed to carry Harley across several DCEU productions. This long-term commitment turned the casting from a simple choice of actress into a franchise investment. To gauge the scale of that strategy, a detour through which Batman was most loved by the public offers a comparative framework — DC tried the same strategy with its Batmen, with less success than with Harley.

Margot Robbie's performance: between chaos and precision

When Suicide Squad came out in August 2016, the film sharply divided critics — but one thing was unanimous: Margot Robbie's performance. The actress delivered a Harley who exceeded expectations. She perfectly captured the blend of psychiatric vulnerability and criminal madness. Every scene she appears in instantly becomes memorable.

Several scenes stand out in particular. Her arrival at the bar, where she orders a drink in a sweet, chilling tone. The Arkham flashback scene, where we see Harleen before the transformation. The final fight, where she fires off her cult lines, alternating laughter and threats. This virtuosity in acting makes her one of the only universally celebrated aspects of the film.

That performance immediately turned Margot Robbie into the undeniable face of the character. To compare this phenomenon to other iconic roles in Batman mythology, a detour through Joker 2019 with Joaquin Phoenix is illuminating — Phoenix and Robbie share that ability to merge with their character to the point where you can no longer imagine anyone else playing them.

The impact of Harley Quinn on pop culture

Before Suicide Squad, Harley Quinn was a character known to DC fans but with little presence among the general public. Afterwards, she became a cultural phenomenon in her own right. Several indicators attest to this.

First, costume sales. Halloween 2016 saw demand for Harley costumes explode — making it the best-selling women's costume of the year in the United States. That popularity held up in the following years, with variations depending on Margot Robbie's film appearances. Second, stylistic influence. The Harley look (pink-and-blue streaked hair, ripped t-shirt, denim shorts, sneakers, baseball bat) became a reference point in street fashion and on haute couture runways. Third, the explosion of merchandise. Figures, posters, clothing, accessories: Harley became one of the most commercially profitable DC characters.

The other cultural dimension is the ambivalent feminist one. Harley is read by some fans as a figure of emancipation (she ends up leaving the Joker in Birds of Prey 2020). By others as a problematic character (she remains glamorized despite her violence). That debate is an integral part of the character's richness. To dig into this ambiguity, a detour through Two-Face, the tragic enemy between justice and madness is interesting — like Harvey Dent, Harley is a character who swings between victim and perpetrator.

Beyond Suicide Squad: Margot Robbie's trajectory as Harley

Suicide Squad was not Robbie's last encounter with Harley. The actress reprised the role in Birds of Prey (2020), a film centered on the character after her breakup with the Joker. That sequel, more feminist and more stylized, divided audiences but cemented Robbie's performance. Then came James Gunn's The Suicide Squad (2021), where Harley is on a different team under a different artistic direction.

Each of these appearances explores a different facet of the character. Ayer's Suicide Squad presents Harley as a toxic lover. Birds of Prey presents her as an emancipated survivor. The Suicide Squad presents her as an independent criminal. This plurality of incarnations in a single actress is rare in cinema — Robbie has become the canonical Harley of the modern era, just as Heath Ledger became the canonical Joker of his time.

As for future rumors, several projects point to a return of Robbie under James Gunn's new DCU. Nothing is confirmed, but the actress's emotional investment in the character is such that a definitive retirement seems improbable.

Conclusion: a casting that redefined a character

The choice of Margot Robbie as Harley Quinn in Suicide Squad is probably one of the most decisive castings of the entire 2010-2020 decade. Not only because the performance was excellent — others have been too. But because it turned a secondary comic book character into a global cultural icon.

To take the exploration further, several essential paths. First, read the original comics that created Harley — especially Mad Love (1994) by Paul Dini. Then, watch Birds of Prey (2020), which extends the character. Finally, follow the upcoming DC projects where Margot Robbie might reprise the role. To turn that passion into a collection, the Batman figure collection and the poster collection now include several references to the character.

One thing is certain: as long as DC makes movies, Harley will remain a central figure. And for many fans, she will long be embodied by Margot Robbie — the actress who turned a fallen psychiatrist into one of the most beloved pop culture heroines of the 21st century.

🃏 To go further: place this character within Gotham's complete criminal ecosystem by consulting the overview of legendary villains by level, which gathers 36 villains ranked by tier of narrative importance.

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