The studio has angered many Palestinians and their supporters by casting the actress Shira Haas to play Sabra, a mutant Mossad agent, in a “Captain America” movie.JERUSALEM — It was the latest addition to a fantasy world populated by an ever-growing cast of superheroes and villains: Marvel Studios announced this past week that it had cast the Israeli actress Shira Haas to play Sabra, a mutant Israeli police officer-turned-Mossad agent, in the next installment of the “Captain America” franchise.While Jewish Israelis rejoiced at the casting of an actress from Israel as a superhero in a major Hollywood production (“Israeli Pride,” declared the Hebrew news site Maariv), the backlash among Palestinians and their supporters was swift, and #CaptainApartheid soon appeared on social media.Many critics expressed outrage about Sabra’s character and her identity as an Israeli intelligence agent, accusing Marvel of buying into Zionist propaganda; of ignoring, or supporting, Israel’s occupation of territory captured in 1967; and of dehumanizing Palestinians.“By glorifying the Israeli army & police, Marvel is promoting Israel’s violence against Palestinians & enabling the continued oppression of millions of Palestinians living under Israel’s authoritarian military rule,” wrote the Institute for Middle East Understanding, a U.S.-based pro-Palestinian organization, on Twitter.Compounding the anger was the name of the superhero, Sabra, which has different connotations for Israelis and Palestinians. To Israeli Jews, a Sabra can simply be a person born in Israel. But Sabra is also the name of a refugee camp in Lebanon where a Christian militia massacred hundreds of Palestinians while Israeli troops stood by 40 years ago.“The bottom line is that to Palestinians, Marvel having an Israeli superhero whitewashes the occupation,” said Sani Meo, publisher of This Week in Palestine, a magazine about Palestinian issues.Palestinians and their supporters around the world have been posting profusely about “Captain Apartheid,” he said. “Some of it is humorous,” he added, “though the topic is not humorous.”A 1940 sketch by Joe Simon of Captain America with a copy of a Marvel comic from the 1960s at the Library of Congress in Washington.Zach Gibson for The New York TimesMarvel Studios declined to answer detailed questions about the issue or about the company’s intentions in bringing Sabra to the big screen.“While our characters and stories are inspired by the comics,” the studio said in a statement, “they are always freshly imagined for the screen and today’s audience, and the filmmakers are taking a new approach with the character Sabra who was first introduced in the comics over 40 years ago.”Explore the Marvel Cinematic UniverseThe popular franchise of superhero films and TV series continues to expand.‘She-Hulk: Attorney at Law’: Tatiana Maslany described the giant, green character making her television debut on Disney+ as “weirdly, the closest thing to my own experience I’ve done ever.”‘Black Panther: Wakanda Forever’: The trailer for the long-awaited sequel was unveiled at Comic-Con International in San Diego. The film will be released on Nov. 11.‘Thor: Love and Thunder’: The fourth “Thor” movie in 11 years, directed by Taika Waititi, embraces wholesale self-parody and is sillier than any of its predecessors.‘Ms. Marvel’: This Disney+ series introduces a new character: Kamala Khan, a Muslim high schooler in Jersey City who is mysteriously granted superpowers.Whatever its motivations, Marvel has found itself mired in the intractable, century-old Israeli-Palestinian conflict.Israel has been vilified by international human rights groups and by boycott and divestment activists for its policies toward the Palestinians. Some of those organizations equate Israeli policy with apartheid. But the country is also gaining broader acceptance by some Arab governments, such as the United Arab Emirates, that have grown tired of waiting for any resolution of the long conflict.Simmering in the background, fierce disputes still frequently erupt in Israel and in the occupied territories over history, territory and national identity.Last year, those tensions embroiled another Israeli actress, Gal Gadot, who appears as Wonder Woman in a different superhero franchise, when she decried the continuing cycle of violence between Israel and the Palestinians. Critics assailed her for comments in which she defended Israel’s right to exist, even as she expressed support for “our neighbors.”Much of the furor over Marvel’s decision to include Sabra in the new movie, called “Captain America: A New World Order,” centers on the name of the character itself.To Israeli Jews, sabra is the Hebrew name of a cactus bush and its fruit, prickly on the outside and soft and sweet on the inside, which the nation’s founders adopted as the nickname for native-born Israelis.But to Palestinians, the sabra bush, traditionally used to mark the boundaries of village lands, is a symbol of loss and steadfastness (“sabr” is also the Arabic word for “patience”). During the war that accompanied Israel’s creation in 1948, Zionist and Israeli forces destroyed hundreds of Palestinian villages, and hundreds of thousands of Palestinians became refugees after fleeing or being expelled from their homes. But the hardy sabra bushes remained an indelible part of the landscape even after most traces of the villages were erased.Residents of the Sabra camp in Lebanon mourning those who were slain in the 1982 massacre.Jamal/Associated PressCritics have also accused Marvel of being insensitive to the link between the Israeli superhero’s name and that of the refugee camp in Lebanon. Sabra and Shatila are the names of two Palestinian camps in Lebanon where, from Sept. 16 to Sept. 18 in 1982, a Lebanese Christian militia massacred hundreds of residents. Israeli troops had allowed the militia to enter the camps, and Israeli commanders issued no orders to stop the carnage.“Social media activists are slamming Marvel over their new Israeli Mossad superhero ‘Sabra,’ whose name is sensitive considering the Sabra and Shatila massacre,” the official Palestinian news agency WAFA wrote on Twitter.The character of Sabra first surfaced in an issue of “The Incredible Hulk” comic book in 1980, wearing a blue cape and white bodysuit featuring a Star of David. That debut was some two years before the massacre in Lebanon.Yossi Klein Halevi, an American Israeli author and senior fellow at the Shalom Hartman Institute, a Jerusalem-based research and educational center, said he believed that the filmmakers had not intended to reference the refugee camp when they decided to use the character.Over the course of a long conflict, like the one between the Israelis and the Palestinians, he said, “a kind of cultural paranoia sets in.”“Sometimes, a Marvel movie is just a Marvel movie,” he added.Still, critics point at how, in a 1981 Hulk issue titled “Power and Peril in the Promised Land,” the character of Sabra initially showed little emotion over the death of a Palestinian boy in an explosion, until the Hulk enlightened her about basic human values.Nothing is yet known about the story line of the next “Captain America” movie, which is scheduled for release in 2024, or the scope of Sabra’s debut role.Ms. Haas, left, on the set of the Netflix series “Unorthodox” in Berlin. One Israeli director praised her as “a brilliant actress who is relatable for her beautiful human flaws and not inhuman perfections.”Anika Molnar/Netflix/EPA, via Shutterstock’But Joseph Cedar, a New York-born Israeli director of movies including “Norman” and “Footnote,” praised Marvel’s casting of Ms. Haas, 27.A diminutive actress who has gained international recognition for her roles in the Netflix series “Unorthodox” and “Shtisel,” Ms. Haas survived cancer as a child.“I like the idea that the embodiment of an Israeli superhero is not a tall supermodel, but rather a brilliant actress who is relatable for her beautiful human flaws and not inhuman perfections,” Mr. Cedar said.Einat Wilf, a former Israeli lawmaker and author of “We Should All Be Zionists,” said that Israel was “enjoying a certain cultural moment,” with many of its local television productions finding success on international streaming platforms. “Marvel wants to make money,” she noted, adding that it appeared the studio saw the box office appeal of an Israeli superhero.Ms. Wilf said that she was withholding judgment about Sabra until the release of the movie, noting that superheroes had become more complex characters in recent years, with “a good side, an evil side, a trauma history.”“I am not so sure that an Israeli superhero will necessarily mean a positive portrayal of Israel,” she added.Hiba Yazbek More