Supergirl first appeared in Action Comics #252, published by DC in 1959. That places it in the Silver Age.
Why this issue matters
Kara Zor-El, Superman's cousin from a surviving fragment of Krypton, debuted here, giving DC's flagship hero family for the first time.
Key facts
Action Comics #252
- Character: Supergirl
- Publisher: DC
- Cover year: 1959
- Era: Silver Age
Before you buy or sell one
- Check it is a first print, not a facsimile or reprint. Newsstand and direct editions are priced differently too.
- Condition decides most of the value. Whether grading is worth it depends on the copy.
Go deeper
Other first appearances from 1959
- Hal Jordan (Green Lantern) Showcase #22, 1959
- Mister Freeze Batman #121, 1959
More DC firsts from the Silver Age
- Reverse-Flash (Eobard Thawne) The Flash #139, 1963
- Zatanna Hawkman #4, 1964
- Barry Allen (Flash) Showcase #4, 1956
- Martian Manhunter Detective Comics #225, 1955
- Justice League Brave and the Bold #28, 1960
- Brainiac Action Comics #242, 1958
- Bizarro Superboy #68, 1958
- Adam Strange Showcase #17, 1958
Got a copy?
I buy key issues and whole collections across the UK, and I will tell you honestly whether what you have is the real first or a later printing. Send me photos of the cover and the indicia and I will come back with a straight answer, and a proper valuation if you want one.