PROFESSOR IVO

The Brave and the Bold #30

Earliest catalogued appearances of Amazo and Professor Ivo.

Jul 1960

No listings

Justice League of America #39"Starro the Conqueror!; Case of the Stolen Super-Powers!; When Gravity Went Wild!"

Nov 1965

No listings

The Flash #158"Battle Against The Breakaway Bandit!"

Feb 1966

No listings

Action Comics #480"Amazo's Big Breakthrough!"

Feb 1978

No listings

DC Special Blue Ribbon Digest #2

Jun 1980

No listings

Justice League of America #218"The Price of Humanity"

Sep 1983

No listings

Who's Who: The Definitive Directory of the DC Universe #1

Earliest catalogued appearance of Amadeus Arkham.

Mar 1985

No listings

Superman Special #3"Amazo Means Mayhem!"

Dec 1985

No listings

Who's Who: The Definitive Directory of the DC Universe #18

Earliest catalogued appearances of Jewelee and Punch.

Aug 1986

No listings

Legends #2

Dec 1986

No listings

Justice League of America #258"Saving Face!"

Jan 1987

No listings

Justice League of America #259"Homecoming!"

Feb 1987

No listings

Justice League of America #260"Flesh!"

Mar 1987

No listings

Justice League of America #261"Last Stand"

Apr 1987

No listings

Doctor Fate #19"Chaos Descending!"

Jul 1990

No listings

Justice League Quarterly #5

Earliest catalogued appearance of Wild Huntsman.

Dec 1991

No listings

JLA #5

Earliest catalogued appearances of Tomorrow Woman and Aztek (Falconer).

May 1997

No listings

JLA Secret Files #1

Earliest catalogued appearance of Hourman (Matthew).

Sep 1997

No listings

JLA: Tomorrow Woman #1"Tomorrow Never Knows"

Jun 1998

No listings

Adventures in the DC Universe #18

Sep 1998

No listings

Hourman #2

May 1999

No listings

Secret Origins of Super-Villains 80-Page Giant #1

Earliest catalogued appearance of Johnny Sorrow.

Dec 1999

No listings

Green Lantern / Atom #1"Unusual Suspects"

Oct 2000

No listings

JLA #83

Sep 2003

No listings

Justice League of America #2"The Tornado's Path, Chapter Two: Tornado - Red/Tornado - Blue"

Nov 2006

No listings

Justice League of America #3"The Tornado's Path, Chapter Three: The Brave & the Bold"

Dec 2006

No listings

Justice League of America #4"The Tornado's Path, Chapter Four: Being Human"

Jan 2007

No listings

Justice League of America #5"The Tornado's Path Chapter 5: Born Again"

Feb 2007

No listings

JLA: Classified #38

Jul 2007

No listings

JLA: Classified #39

Aug 2007

No listings

JLA: Classified #41

Oct 2007

No listings

JLA: Classified #44

Dec 2007

No listings

Salvation Run #3

Mar 2008

No listings

Countdown #3

Apr 2008

No listings

DC Universe #0

Earliest catalogued appearances of Iroque and Red Volcano.

Jun 2008

No listings

Salvation Run #7

Jul 2008

No listings

Justice League of America #25"The Second Coming, Chapter Four: The Best Lack All Conviction"

Nov 2008

No listings

Superman/Batman Annual #3"Compound Fracture"

Mar 2009

No listings

Solomon Grundy #4"Took ill on a Thursday"

Aug 2009

No listings

Solomon Grundy #5"Worse On A Friday!"

Sep 2009

No listings

Justice League: Generation Lost #11

Dec 2010

No listings

Power Girl #19"One Step Forward - Two Steps Back"

Feb 2011

No listings

Justice League: Generation Lost #15

Earliest catalogued appearance of Khalis.

Feb 2011

No listings

Power Girl #20"Beasts of Burden"

Mar 2011

No listings

Justice League: Generation Lost #17

Mar 2011

No listings

Justice League: Generation Lost #18

Mar 2011

No listings

Justice League: Generation Lost #19

Apr 2011

No listings

Justice League: Generation Lost #22

May 2011

No listings

Justice League: Generation Lost #23

Jun 2011

No listings

Supergirl #65"This is Not My Life, Part 1 of 3"

Aug 2011

No listings

Supergirl #66"This is Not My Life, Part 2 of 3"

Sep 2011

No listings

Supergirl #67"This is Not My Life, Part 3 of 3"

Oct 2011

No listings

Justice League of America #1"World's Most Dangerous, Chapter One"

Earliest catalogued appearance of Dante Ramone.

Apr 2013

No listings

Justice League of America #2"World's Most Dangerous, Chapter Two; Security Detail"

May 2013

No listings

Justice League of America #4"World's Most Dangerous, Chapter Four: The Good, the Bad, and The Shaggy; Trial By Fire"

Jul 2013

No listings

Justice League of America #5"World's Most Dangerous, Chapter Five; The Martian Manhunter"

Earliest catalogued appearance of Relic.

Aug 2013

No listings

Teen Titans Go! #18

Dec 2016

No listings

Injustice 2 #24"Endangered Species Part 2"

Sep 2017

No listings

Injustice 2 #33"Save The World"

Nov 2017

No listings

Injustice 2 #43"Gorilla Rebellion"

Jan 2018

No listings

Injustice 2 #47"Up and Away"

Feb 2018

No listings

Injustice 2 #48"The Dark Side of the Moon"

Mar 2018

No listings

Injustice 2 #50"Aftershocks"

Mar 2018

No listings

Lex Luthor/Porky Pig #1"Employee of the Month; Lex's Next Appointment"

Oct 2018

No listings

Justice League Giant #3

Nov 2018

No listings

Justice League Giant #4

Dec 2018

No listings

Justice League #13

Feb 2019

No listings

Justice League #27

Sep 2019

No listings

DCeased: Dead Planet #3

Nov 2020

No listings

DCeased: Dead Planet #6

Feb 2021

No listings

WildC.A.T.s #2

Feb 2023

No listings

Superman #2"Chapter Two: The Night of the Parasite"

Earliest catalogued appearances of Graft, Marilyn Moonlight, and Doctor Pharm.

May 2023

No listings

Batman / Superman: World's Finest #14

Jun 2023

No listings

Batman / Superman: World's Finest #15

Jul 2023

No listings

Batman / Superman: World's Finest #16

Aug 2023

No listings

Green Arrow #14"Arrows Against the World!"

Earliest catalogued appearance of Jadestone.

Sep 2024

No listings

Green Arrow #15"Get Ivo!"

Oct 2024

No listings

Green Arrow #16"Old Friends"

Nov 2024

No listings