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Key Facts
1st full appearance of Killer Croc
Batman #357 is commonly cited as Killer Croc's first appearance but he appears no different in his first cameo appearance in Detective Comics #523 than he does in Batman #357. In this issue, it is revealed that the previously obscured figure has crocodile features
2nd cameo appearance of Jason Todd, in one panel, mentioned by name
Key Facts
1st full appearance of Killer Croc
Batman #357 is commonly cited as Killer Croc's first appearance but he appears no different in his first cameo appearance in Detective Comics #523 than he does in Batman #357. In this issue, it is revealed that the previously obscured figure has crocodile features
2nd cameo appearance of Jason Todd, in one panel, mentioned by name
Key Facts
1st appearance of the Phantasm, Andrea Beaumont, in comics
Character adapted from the animated movie 'Batman: Mask of the Phantasm'
Issue went on sale December 1993, released simultaneously with the red cover Deluxe Edition
A promotional mini-comic was included with the VHS tape which was released in May 1994
[December 2025 - early speculators are hoping Scarlett Johansson's casting in Batman II will be the Phantasm]
Key Facts
1st appearance of the Phantasm, Andrea Beaumont, in comics
Character adapted from the animated movie 'Batman: Mask of the Phantasm'
Issue went on sale December 1993, released simultaneously with the red cover Deluxe Edition
A promotional mini-comic was included with the VHS tape which was released in May 1994
[December 2025 - early speculators are hoping Scarlett Johansson's casting in Batman II will be the Phantasm]
Key Facts
1st appearance of Scarface and Ventriloquist
Key Facts
1st appearance of Thomas Elliot, later revealed to be Hush
[March 2022 - the Batman movie tie-in website rataalada.com posted an image of a riddle that rewards puzzle-solvers with a video of Thomas Wayne's mayoral campaign ad which briefly splashes the word HUSH! across the screen]
Key Facts
1st appearance of Thomas Elliot, later revealed to be Hush
[March 2022 - the Batman movie tie-in website rataalada.com posted an image of a riddle that rewards puzzle-solvers with a video of Thomas Wayne's mayoral campaign ad which briefly splashes the word HUSH! across the screen]
Key Facts
1st appearance of The Monk, Batman's first costumed enemy
1st appearance of Julie Madison, Bruce Wayne's girlfriend
5th appearance of Batman
Debut of the Batgyro, an airborn vehicle later replaced by the Batplane
Debut of the Batarang
Stories take place in New York City
Key Facts
1st appearance of The Monk, Batman's first costumed enemy
1st appearance of Julie Madison, Bruce Wayne's girlfriend
5th appearance of Batman
Debut of the Batgyro, an airborn vehicle later replaced by the Batplane
Debut of the Batarang
Stories take place in New York City
Key Facts
1st appearance of The Talon, William Cobb, an assassin for the Court of Owls and the great-grandfather of Dick Grayson
Key Facts
1st appearance of The Talon, William Cobb, an assassin for the Court of Owls and the great-grandfather of Dick Grayson
Key Facts
1st appearance and cover of Talia al Ghul, daughter of Ra's al Ghul
Key Facts
1st appearance and cover of Talia al Ghul, daughter of Ra's al Ghul
Key Facts
1st appearance and origin of the Riddler
Key Facts
1st appearance of Harley Quinn in a standard comic
Key Facts
1st appearance of Harley Quinn in a standard comic
Key Facts
1st appearance of the second Clayface, Matt Hagen, a scuba diver who had come into contact with a clay-like substance that compromised his molecular structure
[October 2024 - Alan Tudyk will voice Clayface in Creature Commandos / November 2024 - a Clayface movie is in development with writer Matt Flanagan (The Haunting of Hill House)]
Key Facts
1st appearance of the second Clayface, Matt Hagen, a scuba diver who had come into contact with a clay-like substance that compromised his molecular structure
[October 2024 - Alan Tudyk will voice Clayface in Creature Commandos / November 2024 - a Clayface movie is in development with writer Matt Flanagan (The Haunting of Hill House)]
Key Facts
1st appearance of Black Mask, a crime boss who wore a mask carved from the casket lid of his deceased father
Key Facts
1st appearance of Black Mask, a crime boss who wore a mask carved from the casket lid of his deceased father
Key Facts
1st appearance and origin of Two-Face, Harvey Dent, a district attorney disfigured by acid
[January 2026 - there is speculation on social media that Sebastian Stan will be cast as Two-Face for the Matt Reeves Batman sequel]
1st appearance of Gilda Dent, the wife of Harvey Dent
1st appearance of Salvatore Maroni, the mob boss who disfigured Harvey Dent
Key Facts
1st appearance and origin of Two-Face, Harvey Dent, a district attorney disfigured by acid
[January 2026 - there is speculation on social media that Sebastian Stan will be cast as Two-Face for the Matt Reeves Batman sequel]
1st appearance of Gilda Dent, the wife of Harvey Dent
1st appearance of Salvatore Maroni, the mob boss who disfigured Harvey Dent
Key Facts
1st appearance of the Penguin
[March 2022 - Colin Farrell will reprise the Penguin in an HBO Max spin-off]
Key Facts
1st appearance of the Penguin
[March 2022 - Colin Farrell will reprise the Penguin in an HBO Max spin-off]
Key Facts
1st appearance of the Joker
1st appearance of the Cat, Selina Kyle, later becomes Catwoman
Debut of the first Batplane which has multiple designs from one issue to the next including Batman #3 and Batman #4
š° Batman #1 sold for over one million dollars 4x with a record-high in 9.4 for $6,000,000
Key Facts
1st appearance of the Joker
1st appearance of the Cat, Selina Kyle, later becomes Catwoman
Debut of the first Batplane which has multiple designs from one issue to the next including Batman #3 and Batman #4
š° Batman #1 sold for over one million dollars 4x with a record-high in 9.4 for $6,000,000
Key Facts
1st appearance, cover and origin of Bane
š Knightfall Reading Order: next Batman #484
[September 2024 - James Gunnās DCU is developing a Bane and Deathstroke super-villain team-up film based on a script by Matthew Orton]
Key Facts
1st appearance, cover and origin of Bane
š Knightfall Reading Order: next Batman #484
[September 2024 - James Gunnās DCU is developing a Bane and Deathstroke super-villain team-up film based on a script by Matthew Orton]
Key Facts
1st appearance of the Scarecrow
Key Facts
1st appearance of the Mad Hatter, Jervis Tetch
1st appearance of Vicki Vale
Key Facts
1st appearance of the Mad Hatter, Jervis Tetch
1st appearance of Vicki Vale
Key Facts
1st appearance of Deadshot, a mercenary
Key Facts
1st appearance and origin of Mr. Freeze, initially named Mr. Zero, later renamed Mr. Freeze in Detective Comics #373
Key Facts
1st appearance and origin of Mr. Freeze, initially named Mr. Zero, later renamed Mr. Freeze in Detective Comics #373
Key Facts
1st appearance of the Penguin in the Silver Age
Key Facts
1st appearance of the Penguin in the Silver Age
Key Facts
1st appearance of Poison Ivy, Pamela Isley
Interior pin-up poster of Batman and Robin included
Key Facts
1st appearance of Poison Ivy, Pamela Isley
Interior pin-up poster of Batman and Robin included
Key Facts
1st appearance of Firefly, Garfield Lynns
Key Facts
1st appearance of the Scarecrow in the Silver Age and 3rd appearance overall
Introduction of Scarecrow chemicals to elicit fear
[October 2023 - a Scarecrow project is rumored to be in development]
Key Facts
1st appearance of the Scarecrow in the Silver Age and 3rd appearance overall
Introduction of Scarecrow chemicals to elicit fear
[October 2023 - a Scarecrow project is rumored to be in development]
Key Facts
1st appearance of Ra's al Ghul
2nd appearance of Talia al Ghul
Key Facts
1st appearance of Ra's al Ghul
2nd appearance of Talia al Ghul
Key Facts
First mention of Arkham Hospital, later renamed Arkham Asylum
Key Facts
First mention of Arkham Hospital, later renamed Arkham Asylum
Key Facts
1st appearance and origin of Man-Bat, a scientist whose experiment went awry after combining human and bat DNA to cure his own deafness
First solo Batgirl and Robin story
Key Facts
1st appearance and origin of Man-Bat, a scientist whose experiment went awry after combining human and bat DNA to cure his own deafness
First solo Batgirl and Robin story
Key Facts
1st appearance of Anarky, Lonnie Machin
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