Sadie Sink’s Burgundy Dress May Have Confirmed Her Character in ‘Spider-Man: Brand New Day’

Marvel’s biggest secrets often extend beyond the plot. For months, one of the most closely guarded details surrounding ‘Spider-Man: Brand New Day’ was not a shocking twist or a hidden villain, but rather the identity of the character Sadie Sink was set to portray.

This secrecy characterized her entire promotional journey for the film, with the actress skillfully sidestepping direct inquiries from journalists while Marvel intentionally kept her role under wraps in trailers and marketing materials. Fans were left to sift through casting calls and set photos for hints, with speculation ranging from Gwen Stacy to Mary Jane Watson circulating for over a year.

Against this backdrop of mystery, Sink’s first official appearance as part of the cast was particularly significant. She made her debut at Columbia Pictures’ photocall at Edge at Hudson Yards in New York, donning a Maison Margiela Avant-Première burgundy silk-blend draped dress, complete with delicate lace trims and exposed black bra detailing. This look closely mirrored a piece from Glenn Martens’ Fall 2026 collection.

According to entertainment outlets covering the tour, the choice of fabric may not have been a mere styling decision. Fashion writers have suggested that the silky, fluid nature of both this dress and a later Prada gown could hint at Sink’s rumored character’s powers, which are said to include mind control and telekinesis—abilities that align with the soft, draping materials chosen for her looks throughout the promotional tour.

Sink’s stylist, Dara Dickson, embraced this aesthetic for the character’s debut look, pairing the burgundy Margiela dress with white Tabi heels and mixed-metal Spinelli Kilcollin rings for the New York event. The consistent use of fluid, silk-based fabrics throughout her red carpet appearances stood in stark contrast to the more structured outfits worn by others on the tour.

This kind of “method dressing” has become a signature move for this press cycle, with co-star Zendaya famously using her wardrobe to reference specific Spider-Man villains and comic book Easter eggs. Sink’s more understated approach followed a similar logic, utilizing color and texture to subtly hint at her character without revealing too much.

As the tour progressed, Sink’s wardrobe evolved from the burgundy Margiela debut to a Prada halter gown for the Los Angeles premiere and eventually a Givenchy-inspired white dress for her Tonight Show appearance. Each outfit maintained a subdued aesthetic that emphasized clean silhouettes over flashy statement pieces.

Whether the burgundy dress was truly a character clue or merely a striking fashion choice is something only Sink and her team can confirm.

Regardless, it capped off a press tour where her wardrobe contributed as much to the storytelling as her carefully guarded interview responses, right up until the film finally unveiled her character’s identity.

Have something to add? Let us know in the comments!