Sadie Sink has spent much of her life in an industry built around transformation.
Actors change their hair for roles. They experiment with makeup, clothes, tattoos, piercings, and constantly shifting trends. Red carpets can turn personal style into a global conversation overnight, while social media makes every new haircut, outfit, or beauty choice something millions of people can immediately analyze.
Sink, however, has taken a remarkably simple approach.
She has never dyed her naturally red hair.
She has never gotten a tattoo.
She has never pierced her ears.
And rather than seeing those things as experiences she has somehow missed, the Stranger Things star has said there is something she genuinely enjoys about remaining largely unchanged.
For Sink, keeping her appearance natural is not simply about refusing beauty trends. It is connected to the way she thinks about acting, identity, and the strange pressure that can come with growing up in the entertainment business.
In a 2025 Glamour cover interview, Sink discussed her famously red hair and was asked whether she would ever consider changing its color. Her answer was straightforward: although she had thought about it before, she had never actually dyed it.
Anyone who grows up with distinctive red hair, she explained, can have a complicated relationship with it. There may be moments when it feels like the feature that makes you special and other moments when being different makes you want to change it.
But Sink said she had repeatedly heard the same message growing up: people spend a great deal of money trying to achieve naturally red hair, so she should be careful before changing hers.
Eventually, keeping it became part of her identity.
“I like the idea that my hair isn’t dyed,” Sink told Glamour. She also explained that she had never pierced her ears or gotten a tattoo, describing the simplicity as a kind of “blank-slate-ness.”
That phrase offers a particularly interesting window into how Sink sees herself.
For many people, appearance is a form of self-expression. Tattoos can commemorate important experiences. Piercings can become part of someone's personal style. Hair color can change with moods, stages of life, or simply curiosity.
Sink does not criticize those choices.
Instead, she seems to view her own body and appearance slightly differently because of her profession.
As an actor, she may need to become many different people.
A character might require a radically different haircut, an unfamiliar fashion style, heavier makeup, or an entirely different visual identity. Sink has suggested that remaining relatively neutral in her everyday appearance gives filmmakers more flexibility to build characters around her.
“I think I always need to be this canvas,” she told Glamour while discussing the connection between appearance and acting.
That philosophy makes more sense when looking at how much transformation is already built into her work.
To millions of viewers, Sink will always be closely associated with Max Mayfield, the skateboard-riding, fiercely independent teenager she began playing on Stranger Things when she was still very young.
Netflix's own character guide describes Max as the newcomer who joined the Hawkins group in Season 2 and eventually became central to some of the show's most emotionally intense storylines.
Sink's performance, particularly during Max's story involving grief and Vecna, became one of the defining elements of the series. Sink told Netflix that she appreciated being able to explore Max's emotional development as the character grew alongside her.
The interesting contrast is that while Sink's fictional characters may experience dramatic emotional and visual transformations, she has kept certain parts of her own appearance remarkably consistent.
Her red hair is perhaps the clearest example.
It is now so closely associated with Sink that changing it would almost immediately become entertainment news.
Yet she has not avoided experimenting entirely.
In 2023, hairstylist Tommy Buckett gave Sink a dramatic shorter haircut inspired by references that included Winona Ryder, David Bowie, Mick Jagger, and Jane Fonda. British Vogue reported that Sink embraced the transformation and felt surprisingly comfortable after cutting off much of her long hair.
Changing the cut, however, was one thing.
Changing the color was another.
Buckett told British Vogue that he would not want to alter Sink's natural copper-red shade, describing its golden tones as something difficult to reproduce once permanently changed.
Years earlier, Sink had already spoken publicly about her preference for a relatively natural beauty routine.