Publisher

Publication Types

Era

Cover Types

Characters

Search Key Updates

DC Jul 1939

Action Comics #14

Action Comics #14
View Series
Low
$1K
Mid
$3K
High
$12K
View on eBay
Superman's emblem is first featured on his cape
1st appearance of Clip Carson
2nd appearance of Zatara, the father of Zatanna
DC Apr 1940

Action Comics #23

Action Comics #23
View Series Variants (3)
Low
$6.5K
Mid
$19K
High
$65K
View on eBay
1st appearance of Lex Luthor, depicted with red hair
1st appearance of Black Pirate, an adventurer who later appeared as a ghost in present day stories
First mention of The Daily Planet
DC Sep 1941

Action Comics #40

Action Comics #40
View Series
Low
$460
Mid
$1.4K
High
$5.8K
View on eBay
1st appearance of the Star-Spangled Kid
1st appearance of Stripsey, Pat Dugan who later becomes S.T.R.I.P.E.
Three-page original story advertising Star-Spangled Comics #1
DC Aug 1948

Action Comics #123

Action Comics #123
View Series
Low
$80
Mid
$230
High
$840
View on eBay
Misconception: many resources cite this issue as the first time Superman demonstrates the ability to fly but Superman #30 is the first time he uses the word "fly"
DC Jun 1958

Action Comics #241

Action Comics #241
View Series
Low
$120
Mid
$400
High
$1.2K
View on eBay
Introduction of the Fortress of Solitude
A prototype version of Superman's headquarters was introduced in Superman #17 and the name was mentioned in Superman #58
DC Jul 1958

Action Comics #242

Action Comics #242
View Series Variants (4)
Low
$1K
Mid
$3K
High
$10K
View on eBay
1st appearance and origin of Brainiac
1st appearance of the Bottle City of Kandor, the capital city of Krypton
[December 2025 - James Gunn posted an Instagram confirming Lars Edinger will portray Brainiac]
DC May 1961

Action Comics #276

Action Comics #276
View Series
Low
$120
Mid
$400
High
$1.2K
View on eBay
1st appearance of Sun Boy, a solar-powered member of the Legion of Super-Heroes
1st appearance of Phantom Girl, a member of the Legion of Super-Heroes who has the ability to phase through objects
1st appearance of Triplicate Girl, a member of the Legion of Super-Heroes who can split into three identical bodies
1st appearance of Bouncing Boy, a density-changing member of the Legion of Super-Heroes
1st appearance of Shrinking Violet, a member of the Legion of Super-Heroes who can shrink to sub-atomic size
1st appearance of Braniac 5, a genius and time-traveling member of the Legion of Super-Heroes
Supergirl joins the Legion of Super-Heroes
DC Sep 1964

Action Comics #315

Action Comics #315
View Series
Low
$8
Mid
$25
High
$100
View on eBay
1st appearance Zigi and Zagi
⚠ Misconception: CGC mislabels Action Comics #316 as the first appearance of Zigi and Zagi
DC Aug 1966

Action Comics #340

Action Comics #340
View Series
Low
$65
Mid
$185
High
$675
View on eBay
1st appearance of Parasite
Interior double-page pin-up of Superman
Like Batman 181, this copy has a centerfold newsprint pin-up that is often missing, so when buying a raw copy remember to double-check for it or ask the seller if it is intact
DC Feb 1973

Action Comics #421

Action Comics #421
View Series
Low
$2
Mid
$5
High
$12
View on eBay
1st appearance of Captain Horatio Strong, a character reminiscent of Popeye who gains his strength from an organic seaweed called Sauncha
DC Sep 1986

Action Comics #583

Action Comics #583
View Series Variants (5)
Low
$2
Mid
$5
High
$12
View on eBay
Written by Alan Moore titled "Whatever Happened to the Man of Tomorrow?" part 2
1st full appearance of Jonathan Elliot, the super-powered baby son of Superman and Lois in an alternate reality where the Clark Kent identity was revealed and changed to Jordan Elliot
Story continued from Superman #423 where Jonathan makes a one panel appearance, unnamed
DC Sep 1989

Action Comics #645

Action Comics #645
View Series Variants (1)
Low
$1
Mid
$2
High
$10
View on eBay
1st full appearance of Maxima, a representative of Almerac sent out into the galaxy to find a mate to repopulate her world - cameo (voice only) in Adventures of Superman #458
[January 2026 - Maxima is confirmed for the Superman sequel]
DC Dec 2010

Action Comics #894

Action Comics #894
View Series Variants (2)
Low
$3
Mid
$9
High
$35
View on eBay
1st cover appearance of Death on a mainstream DC book
It is a common misconception that Death first appears in DC’s mainstream universe in this issue but a decade earlier she appears in Captain Atom #42. In fact, she appears in the Marvel Universe prior to her appearance in Action Comics when she makes a cameo at the wedding of Rick Jones and Marlo Chandler in the Incredible Hulk #418
Marvel Jan 2009

Adam: Legend of the Blue Marvel #1

Adam: Legend of the Blue Marvel #1
View Series
Low
$18
Mid
$60
High
$180
View on eBay
1st appearance of Blue Marvel, a powerful black superhero forced into retirement in the 60s due to his race
1st appearance of Anti-Man
17,000 estimated copies ordered by retailers
[February 2019 - speculation a future Marvel project, possibly The Marvels will introduce Blue Marvel]
DC Jan 1941

Adventure Comics #58

Adventure Comics #58
View Series
Low
$240
Mid
$715
High
$2.6K
View on eBay
1st appearance of Paul Kirk, an investigator
The title of this story is 'Paul Kirk, Manhunter' but Kirk is not depicted in a costume or referred to by the moniker

Clicking on the eBay link and making a purchase may result in this site earning a commission from the eBay Partner Network.

No Results Found

Try adjusting the "Variants" search filter above, or disable "Keys Only" to see all issues.

  • Variant Covers ()

Subscribe to Unlock

View Graded Pricing

Unlock graded pricing and other premium features by subscribing to Key Collector Comics.

Subscribe Learn what's included

Price Guide

Prices are estimates based on recent sales data and may not reflect actual market value. Key Collector Comics does not guarantee the accuracy of any pricing information.