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Superheroes frequently undergo transformations in comics and films, yet certain defining characteristics typically stay the same. Take Spider-Man, for example, who is often portrayed as a young Peter Parker bitten by a radioactive spider. Even when his iconic red and blue suit is altered—like Miles Morales’s red and black or Spider-Gwen’s white, pink, black, and blue—the signature web design remains a constant.
While most iconic elements are rooted in comic books, some defining aspects of superhero lore come from other sources. Here are 10 such traits and storylines that originated outside the comics.
10. Tony Stark and Pepper Potts’s Love Story Owes Its Existence to the MCU
In the Marvel Cinematic Universe, Tony Stark and Pepper Potts (portrayed by Robert Downey Jr. and Gwyneth Paltrow) may have faced challenges in their relationship, but they ultimately stayed together and even had a child. This contrasts sharply with their comic book versions, where they are more commonly shown as having a professional, rather than romantic, connection.
In the comics, Pepper Potts is most consistently romantically linked to Happy Hogan—Stark’s chauffeur, bodyguard, and personal assistant (played by Jon Favreau in the films)—with the two eventually marrying. While Pepper and Tony do occasionally pair up in the comics, she is merely one of many love interests in Tony’s life, which includes figures like Janet Van Dyne (The Wasp), She-Hulk, and Natasha Romanov (Black Widow).
9. Harley Quinn Was Introduced in Batman: The Animated Series
Batman: The Animated Series, which ran from 1992 to 1995, left a lasting legacy on Batman lore. Its most iconic addition was Harley Quinn, the Joker’s loyal accomplice and romantic partner. Originally created for the show, she swiftly transitioned into the comics, debuting in 1993’s The Batman Adventures #12. Today, she stands as one of DC’s most adored characters, even topping the list of Halloween costumes in 2016.
Batman: TAS also reimagined existing characters in ways that became canon. For example, Mr. Freeze was given a heartbreaking backstory, with his wife Nora suffering from a fatal disease, pushing him into a life of crime as he sought a cure for her.
8. Star-Lord’s Lighthearted Persona Originated in Guardians of the Galaxy (2014)
Before James Gunn’s 2014 Guardians of the Galaxy movie, Star-Lord (Peter Quill) was portrayed as a stern, military-style figure with a no-nonsense demeanor. Chris Pratt’s interpretation, however, transformed him into a charming, Han Solo-esque rogue with a strong comedic edge. Following the film’s success, Marvel Comics adapted Star-Lord’s character to reflect Pratt’s more carefree and humorous portrayal.
The comic book version of Star-Lord maintained this lighthearted personality for years until writer Al Ewing aimed to merge his serious and playful traits in Guardians of the Galaxy Vol. 6, which launched in 2020. While the comic character now strikes a balance between seriousness and humor, Pratt’s fun-loving Star-Lord remains the most iconic depiction.
7. Toad’s Prehensile Tongue and Acidic Spit Were Introduced in X-Men (2000)
In the X-Men comics, Toad is a member of Magneto’s Brotherhood of Evil Mutants. Debuting in 1964, he was originally depicted as a hunchbacked mutant with extraordinary leg strength, enabling him to leap vast distances like his amphibian namesake. The 2000 X-Men film heightened his threat by granting him a long, prehensile tongue and the ability to spit acid.
Ray Park, who played Toad in the live-action film (and is best known as Darth Maul in 1999’s Star Wars: Episode I–The Phantom Menace), influenced the comics’ portrayal of the character. It was explained that Toad’s mutation had been suppressed by Project Black Womb. Once his full powers were unleashed, the comic version of Toad adopted the iconic tongue and acidic spit seen in the movies.
6. Wonder Woman’s Lasso Was Renamed the Lasso of Truth in the ’70s TV Series
When William Moulton Marston introduced Wonder Woman’s magical lasso in issue six of Sensation Comics, its primary purpose was to compel obedience rather than reveal truth. Aphrodite and Athena explained to Wonder Woman that “Whomsoever thy magic lasso binds must obey thee!” This allowed her to command others to perform various actions, including telling the truth, but also whimsical tasks like standing on their heads.
The lasso’s connection to truth emerged from the Lynda Carter-starring Wonder Woman TV series in the 1970s, where it was frequently used to force honesty from others. This association was cemented in 1987 when George Perez and Greg Potter rebooted Wonder Woman. In the second issue, the lasso was formally named “The Lasso of Truth.”
5. Blade’s Leather-Clad, Half-Vampire Persona Was Defined in Blade (1998)
Blade first appeared in 1973’s Tomb of Dracula #10 as a human vampire hunter armed with daggers and stakes. His original attire included yellow sunglasses and a bright green coat, a stark contrast to the sleek black leather look popularized by Wesley Snipes in the 1998 film. In the 1980s, his origin was expanded, revealing that his mother was bitten by a vampire during childbirth, granting Blade immunity to vampire bites.
When David S. Goyer was tasked with writing the live-action adaptation, he pondered, “How do we elevate him to a legendary status? My first decision was to make him a hybrid, akin to Hercules. He would be part human and part god, yet shunned by both realms. In the comics, he wasn’t truly half-vampire, but I chose to make him one, burdened by an unquenchable thirst.”
Blade had already been depicted as a half-vampire in 1995 during his appearance in season two of Spider-Man: The Animated Series, though Goyer appeared unaware of this iteration. The film’s success prompted the comic book version of Blade to be reimagined into the sword-wielding Daywalker popularized by Snipes, after being bitten by Morbius, a genetically engineered vampire to whom Blade lacks immunity.
4. Batman’s Black Suit Originated from the Batman Movie
Prior to Tim Burton’s 1989 Batman, the Dark Knight’s costume was usually gray and blue or gray and black, often accented with yellow. He also wore Superman-style briefs over his suit. However, Michael Keaton’s Batman donned a black armored outfit (with subtle yellow accents), and this darker, more tactical design became the definitive look for Batman in both films and comics.
“Many artists were captivated by the costume design,” notes Jim Lee, current DC Comics president, publisher, and CCO (and a former Batman artist). “The blue trunks temporarily disappeared from DC’s comics due to the film’s significant influence.”
Burton’s film also influenced Gotham City’s aesthetic, giving it a darker, more gothic appearance. Dan DiDio, who co-published with Lee until 2020, described it as “a city dominated by shadows, gothic architecture, and gargoyles. Burton’s film brought this vision to life, and it has defined Gotham City ever since.”
3. Superman’s Ability to Fly Was Introduced in the Radio Show
The radio show also granted Superman the power of flight. In the comics, Superman could only leap vast distances, but the radio series opened with the famous lines, “Up in the sky! Look! It’s a bird! It’s a plane! It’s Superman!” The second episode, which debuted on February 14, 1940, begins with Superman “hovering with his mysterious power above a quiet Indiana highway” before he “wheels and turns in rapid flight.” By 1941, the Fleischer Superman cartoons depicted him flying, cementing it as one of his signature abilities.
In 1941, Superman may have flown in the comics, but it was unintentional. Artist Leo Nowak, new to the series, drew several panels where Superman seems to hover rather than leap, though this remains a topic of debate.
Technically, Superman’s first flight appeared in 1939 on the cover of the UK’s Triumph magazine. Superman newspaper strips were reprinted internationally, and this cover depicted Kal-El flying away from Earth. However, Triumph didn’t set the standard for Superman’s lore, and flight becoming an official power is largely credited to the radio show.
2. Kryptonite: Superman’s Greatest Weakness Was Invented to Give His Radio Actor a Break
Kryptonite—the green crystalline substance deadly to Kryptonians—is a cornerstone of Superman lore. Surprisingly, it wasn’t conceived for storytelling purposes but to provide the voice actor a respite. The Adventures of Superman, a popular radio series from 1940 to 1951, starred Bud Collyer as the Man of Steel. Appearing in every episode was demanding, so Kryptonite was introduced in 1943 to temporarily weaken Superman, allowing Collyer time off without halting production.
It took six years for Kryptonite to appear in the comics. In 1949’s Superman #61, Kryptonite debuted, though it was red instead of green. The iconic green version first appeared in 1951’s Action Comics #161. The radio show also introduced now-iconic characters like Daily Planet editor Perry White and photojournalist Jimmy Olsen.
While Kryptonite officially originated on the radio, a similar concept was nearly introduced in the comics earlier. In 1940, Jerry Siegel, Superman’s co-creator, wrote a script titled “The K-Metal from Krypton,” which was rejected. K-Metal was essentially Kryptonite under a different name, described as emitting a “penetrating green glow” and harming Superman.
1. Spider-Man’s Organic Web-Shooters Were Introduced in Spider-Man (2002)
Throughout most of Spider-Man’s history, he was portrayed with mechanical web-shooters attached to his wrists. This changed in 2002 with Sam Raimi’s Spider-Man film, where he was given organic web-shooters. The logic was that if the radioactive spider granted him enhanced reflexes, super strength, and wall-crawling abilities, it made sense for him to naturally produce webbing as well.
The concept of organic web-shooters originated with James Cameron, who was set to write and direct the film for Carolco Pictures. Although the project was shelved due to rights disputes, his ideas influenced the 2002 movie. “He had some great concepts,” screenwriter David Koepp told IGN in 2020. “I liked the organic web-shooters, which divided fans, but it was his idea, and I was glad to incorporate it.”
Later Spider-Man adaptations returned to the classic mechanical web-shooters, but the 2002 film left a lasting impact. Interestingly, organic web-shooters had appeared in comics before: Spider-Ham (Peter Porker), introduced in 1983, and Spider-Man 2099 (Miguel O’Hara), debuting in 1992, both possessed natural webbing. However, the concept gained more traction in comics after Raimi’s film became a massive success.
In 2004, a storyline in Spectacular Spider-Man featured Peter developing organic webbing after being kissed by The Queen. He also temporarily gained this ability in The Other, which ran from 2005 to 2006. This arc also led to Kaine Parker having organic web-shooters. Additionally, the Spider-Man from Spider-Man Noir is another notable character with natural webbing.
