Development
Series co-creators and co-showrunners Ashley Lyle and Bart Nickerson, who are married, came up with the premise of the story after they talked about the 1993 film Alive, an adaptation of the book Alive: The Story of the Andes Survivors (1974) which documents the 1972 Andes flight disaster. They are both fascinated by the story of the Uruguayan team and the Donner Party, which served as a "jumping-off point" for their concept. Nickerson introduced the notion of a "what if?" and they expanded upon that, discussing various ideas about characters and story. They were working on the pitch for the story in 2017 when they read a report on a "gender swapped" film adaptation of the 1954 novel Lord of the Flies being developed and found that the reaction comments were "brutal, but in a way that I thought was just deeply incorrect", Lyle said; people rejected the idea that young girls could descend into the same barbarism as young boys, which "just added fuel to our fire, really, because we just thought we can prove [that notion] wrong".
Lyle and Nickerson's concept was a "metaphor for teenage hierarchy", wanting "to tell what felt like a very real story about teenage girls" and explore "the best and worst that human beings are capable of". Lyle said that girls "learn early on how to make people like [them] and what the social hierarchies are. It's a more interesting way of having things fall away. ... It's a more layered amount of preconceived notions of how to behave and act." They wanted the title of the show to be the name of the girls' team, and chose Yellowjackets after it came up on a Google search for sports team names, finding it a "perfect fit thematically" as yellowjackets are "very dependent on a queen and the dynamics of the hive are very specific ... it's a small creature with a large sting."
Lyle and Nickerson pitched the series with a 35-minute presentation to 16–17 networks. They received offers from five. They made a five-season pitch, not with the intent of needing exactly five seasons but to show "how expansive the show and the idea can be", that it was a multi-season story, it was "something that can sort of reinvent itself and change and shift", and that they knew what they wanted it to be and where it was going. Lyle said that a number of networks stated that it was a "big swing of an idea" with no IP attached. A challenge they faced when pitching was networks being "aware of their brands" and tending to place shows with teenage protagonists into a young adult box. Some networks saw the show differently from their concept. "Shows about teenagers or that feature teenagers with ambitions to be something other than a classic YA show tend to frighten people a little bit", Lyle noted. "They aren't something with a long track record."
Lyle said the smartest question she heard during the pre-production phase was from HBO's Francesca Orsi and David Levine, who asked, "What are you trying to say with this show?" In his answer, Nickerson said they intended to deconstruct the "organizing principles of a society". HBO was a contender to purchase the series but ultimately rejected it as they were developing Euphoria, which has teenage protagonists. Yellowjackets was sold to The Mark Gordon Company, a production company owned by Entertainment One. The project was then pitched to Gary Levine, president of entertainment for Showtime Networks, who was immediately on board. The creators said that Showtime supported "the darker and weirder qualities" of the story. On May 9, 2018, Showtime announced it had acquired the rights to the series.
The use of two timelines expanded the exploration of the characters' interpersonal dynamics and the effects of their traumas. Although the series was originally set with the crash in the 1970s and the aftermath in the 1990s, both time periods were moved forward so that the crash took place in 1996 and their life as adults in 2021. This switch made the setting more familiar to viewers and aided the production in working with one historical era and one contemporary era. The showrunners explained cannibalism's role in the story: Cannibalism is revolting and we have a moral aversion to it. It represents the complete deconstruction of society. We all agree there isn't anything more taboo. It's the most extreme distillation of everything that it is to be a human being ... There's obviously the survival aspect of it but there's also something so fascinating to me about the different ways in which the act has functioned in various societies ... For these girls, this is the ultimate cost and consequence of true and absolute freedom. They're never more alive than when they're in this feral state and it plagues them as adults ... moral codes are broken but we wanted to find the why and the humanity even within the outcome. The show takes place in New Jersey, the state Lyle and Nickerson both grew up in. The duo is credited as showrunners alongside Jonathan Lisco, who was brought to the series by executive producer Karyn Kusama.
On December 16, 2021, after the first five episodes aired, Showtime renewed the series for a second season. Levine said that the network had "not heard the pitch for season 2, the writers ... are going to come together in January." On the planned length of the show, Lyle and Nickerson stated in January 2022 that the story will inform them how many seasons it will be. "We have no interest in dragging this show out past its due time. We do have a multiseason arc; we strongly feel we have multiple seasons of story to tell. But at a certain point, we're going to realize that the story wants to end. And I hope that the audience is reassured that we don't intend to beat a dead horse." In February, Levine said the creators had "always given us hints about things to come, but we haven't done a long-range plan. We wanted to make the first season count. ... I love that they have some general idea of a five-year arc, but we take it one season at a time and get very granular about making it satisfying." By May 2022, the writers were stated to be in the initial stage of writing the scripts for season two.
On December 15, 2022, three months ahead of the second-season premiere, Showtime renewed the series for a third season. Writing began on May 1, 2023, but halted the next day in accordance with the 2023 Writers Guild of America strike. In June 2023, Lyle said that a bonus episode would air between the second and third seasons. However, in December 2024, Lyle confirmed its delay: "The truth is that there is a bonus episode but we may need to wait a bit longer for it."
Showtime renewed the series for a fourth season on May 20, 2025. In October, it was announced as the series' final season, with production starting in 2026 and the season premiering that year. Lyle and Nickerson stated: After three incredible seasons, and great consideration, we're excited to announce that we will be bringing the story of Yellowjackets to its twisted conclusion in this fourth and final season. We've always known there would come a point when the story would tell us it wants to end, and it's our belief that our job — our responsibility — is to listen. Telling this emotional, wild, and deeply human story has been a profoundly meaningful experience and a true honor for us.
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