Supergirl(2015-2021) adapts a character whose entire editorial history can be summed up in one word:derivative . Created in 1959 in Action Comics #252 as a female variant of Superman, killed in 1985 to simplify continuity, since brought back in contradictory forms – the series takes precisely this status as its subject. Here is the detailed comparison.

A character defined by his relationship to another, and what must be done to get him out of it. Decryption source by source, without disclosing the outcomes.

As in each article in this series, only verified information (creators, distribution, dates, publishers) is stated; the comparative analysis is ours, without reproducing dialogue or protected images.

📺 The series

Title : Supergirl (2015-2021)

Subject : exist alongside a legend

Superman: kept at a distance, almost absent

Frame : an agency, an editorial team

Duration : six seasons

📚 The original comics

Action Comics #252(1959) — 1st appearance

Otto Binder & Al Plastino

Crisis on Infinite Earths #7(1985)

The principle: a cousin from Krypton

✅ What she keeps
  • L'origin from 1959: Krypton's cousin.
  • Le memory of her planet, which she knew.
  • THE powers identical to those of Superman.
  • Le journalistic environment, inherited from the canon.
  • La question of its own legitimacy.
🔀 What it changes
  • Superman,discarded of the frame.
  • La adopted sister, created for the series.
  • L'government agency, invented.
  • THE opponents, largely rewritten.
  • L'order arrival on Earth.

1959: a character created as a variant

Kara Zor-El appears in Action Comics #252 (1959), created by Otto Binder and Al Plastino.

Its design is based on an editorial logic that this corpus has already encountered. At the end of the 1950s, DC multiplied variations around its flagship character: a dog, a cat, a monkey, a teenage version, a cousin. The goal is to sell more titles by leveraging a name that works.

Supergirl is therefore born as variant, and its history bears this lasting mark. She has the same powers, the same origin, the same costume. Its only notable difference is that it has known Krypton— she keeps memories of it, where Superman has never seen anything of his planet.

This nuance is more important than it seems, and the series understands it well. Superman is an Earthling who discovers his origins; Supergirl is a exiled who lost everything. The first gains an identity, the second loses one.

1985: killed for administrative reasons

The character dies in Crisis on Infinite Earths #7(1985), and the motif deserves to be exposed, because it is revealing.

The 1985 event aimed to simplify a continuity that had become incomprehensible. Among the decisions made: making Superman the sole survivor of Krypton, which made his situation unique again. But Supergirl directly contradicted this rule.

It was therefore deleted. Not because his character was exhausted, nor because his title sold poorly, but because his existence hindered a structural decision.

This corpus has repeatedly noted that the fate of adaptations is decided for reasons external to their quality. The same observation applies to paper, and this case is the clearest example: a popular character for twenty-six years erased for reasons of internal consistency.

What follows is instructive. The name came back very quickly – the public demanded it – but attributed to entirely different characters: an artificial being, then other successive versions. It took around twenty years for the original Kryptonian cousin to be reestablished. The name was worth more than the character, and that's the name we kept.

2015: make derivative status the subject

The series makes a structuring decision:dismiss Superman. It exists, it is mentioned, but it hardly appears and does not intervene.

This absence is not a circumvention of rights or production: it is the very subject of the series. A heroine whose actions each measures against another, and who must establish that she is not a variation.

The process is the same as that used bySmallville, with a different object. There, the character was deprived of his attributes to tell his training; here, we deprive the series of the tutelary figure so that the heroine exists alone. In both cases, adaptation advances by subtraction.

This is a lesson that this corpus has often seen confirmed: what an adaptation removes matters more than what it adds. Add diluted; withdraw strength to find.

The characters, from paper to screen

What “derivative” means to a publisher

This point must be developed, because it sheds light on a considerable part of the superhero catalog and is of direct interest to the collector.

Derivative characters – female, young, animal variants – proliferated in the 1950s and 1960s for a simple reason: they made it possible to launch a title without creating a new property, and therefore without risk. The reader already knew what to expect.

Most did not survive. Those who lasted did so in ceasing to be derivative— by acquiring a framework, an entourage and specific issues, until the relationship becomes anecdotal. This corpus has examined several cases of this trajectory, and it always follows the same path: the character must distance himself geographically, professionally and narratively from his model.

The 2015 series does just that job. Different city, different job, own entourage, specific opponents. It's not disloyalty to comics: it's same movement that the comics had to operate, executed faster.

For the collector, this results in a useful observation. The first appearances of spin-off characters are often undervalued compared to those of the originals - which is understandable - but they are suddenly re-evaluated when the character emancipates, generally by adaptation. This is a signal that can be identified in advance: a derivative character who obtains a proper frame on screen is a character whose first appearance will be viewed differently.

Collection side: which numbers to aim for after the series

Action Comics #252(1959) contains the first appearance of Supergirl. This is a solid silver age key, whose rating has clearly increased with successive adaptations of the character.

His profile is interesting to understand. The issue also contains the first appearance of Metallo, making it a double key - a common occurrence on anthology titles of this era, where several stories coexisted. This corpus recommends systematically checking this point: an issue purchased for one reason often contains another.

Crisis on Infinite Earths #7(1985) is the other number to know. It contains the character's death and its cover is one of the most reproduced in the history of the medium. The print run was considerable, so the issue is common and inexpensive — but it's precisely the kind of piece that makes sense in a collection: an image that everyone recognizes, for the price of a coffee.

Finally, a word on the ratings cycle. This character has seen several peaks related to its adaptations — a film in 1984, the 2015 series, then subsequent projects. Each peak was followed by a settling. This corpus repeats it because the mechanism is regular:buying during the exhibition means buying at the highest. As always, condition and gradation determine value; relying on real recent sales is strongly recommended.

1959, or the industrial invention of the secondary character

A final observation on the period of creation, because it sheds light on an entire section of the catalog that modern readers go through without understanding it.

At the end of the 1950s, comic book publishing operated as a flow industry: newsstands had to be supplied every month, and the cost of failure was low — a title that did not sell disappeared without damage. In this regime, the rational strategy consists of multiplying variations of a sure value rather than betting on new creations.

Hence this flowering of cousins, mascots and variants which seems absurd today. It was not: it was a portfolio policy, where we launched ten ideas knowing that only one would survive.

The point that interests today's reader is this. This method produced a lot of first appearances, most of which never served any purpose — and a few became considerable. However, when they were published, nothing distinguished them: the issue that launched Supergirl looked like the one that launched a space dog.

This is what makes this period so interesting to dig into. The characters who emerged did so long after their creation, often by accident, and their first issue was not preserved any more carefully than any other. A collector who knows the catalog of this decade therefore has a real advantage: he knows what ended up counting, while the market of the time did not know it.

Where to start reading

Action Comics #252(1959) can be read in just a few minutes and shows exactly what a spin-off creation was at that time. To understand what the character has been through,Crisis on Infinite Earths #7(1985) is the number to read — and it is understandable even without having read the previous six.

Timeline to know

Its place in the saga and for the collector

This series will remain as the one that took the derived status of a character as subject, instead of going around it - by pushing aside the tutelary figure rather than leaning against it. It redoes, more quickly, the work that comics had to do: provide a framework, a profession and specific issues. Finally, she recalls that the character's death in 1985 had no narrative motive — it hampered a structural decision. For the collector, it designates an exploitable signal: a derived character who obtains a proper frame on the screen sees his first appearance change status.

The verdict: the origin kept, the guardianship withdrawn

Created as a variant, deleted for administrative reasons, returned under other guises because the name was worth more than the character. The series does the only thing that could get it out of there: remove the person to whom it was compared.

Frequently asked questions

Because his absence is the point. A heroine whose actions each measures by the yardstick of another must, to exist, be deprived of this reference. The series advances by subtraction — like Smallville, with a different object.

She knew Krypton and keeps memories of it, whereas he never saw anything of his planet. Superman is an Earthling who discovers his origins; Supergirl is an exile who has lost everything. The first gains an identity, the second loses one.

For a reason of structure, not of narrative: the event of 1985 made Superman the only survivor of Krypton, and his existence contradicted this rule. A popular character for twenty-six years erased by internal consistency.

Very quickly, but attributed to entirely different characters — an artificial being, then other versions. It took around twenty years to reestablish the Kryptonian cousin. The name was worth more than the character, and that's the name we kept.

Action Comics #252 (1959), double key since it also contains the first appearance of Metallo — always check this on anthologies from this era. And Crisis on Infinite Earths #7 (1985): common and inexpensive, but its cover is one of the most reproduced in the medium.

Does the series make you want to collect?Estimate the value for freeof your issues (Action Comics #252, Crisis #7…) with our tool based on real eBay sales.