| PROFESSOR PYG (Lazlo Valentin) | CHRONOLOGY |
| Created by Grant Morrison and Andy Kubert |
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CHRONOLOGY
Professor Pyg first appeared in Future timeline: Batman #666 (July 2007); Actual: Batman and Robin #1 (August 2009).
Below is the definitive list of appearances of Professor Pyg in chronological order. Flashback sequences or story entries will be followed by a [Flashback] note. Stories that for some reason are no longer part of current continuity will have a comment saying this in a note following the entry.
Follow the links for a complete index of the issue, including story and creator info as well as full character chronology and in some cases story synopses.
The chronology list can also be sorted according to Comic book title. Please note: If you want to go back to the chronological listing after having used the sorting tool you have to reload the page.
To go to the Professor Pyg (Lazlo Valentin) biography click here.
Professor Pyg Chronology
| Click to list by alphabetically by title |
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| Batman and Robin #1 (August 2009): "Batman Reborn, Part One: Domino Effect" |
| Batman and Robin #2 (September 2009): "Batman Reborn, Part Two: The Circus of Strange" |
| Batman and Robin #3 (October 2009): "Batman Reborn, Part Three: Mommy Made of Nails" |
| Batman and Robin #13 (August 2010): "Batman and Robin Must Die!, Part 1: The Garden of Death" |
| Batman and Robin #14 (October 2010): "Batman and Robin Must Die!, Part 2: The Triumph of Death" |
| Batman and Robin #15 (December 2010): "Batman and Robin Must Die!, Part 3: The Knight, Death and the Devil" |
| Batman and Robin #16 (Early January 2011): "Black Mass" |
| Batman Vol. 2 #1 (November 2011): "Knife Trick" |
| Resurrection Man Vol. 2 #6 (April 2012): "Locked In" |
| Batwoman Vol. 2 #22 (September 2013): "This Blood is Thick, Part 4: Hits" |
| Detective Comics Vol. 2 #27/6 (March 2014): "Gothtopia, Part 1: The Perfect Crime" |
| Detective Comics Vol. 2 #28 (April 2014): "Gothtopia, Part 2: The Maddening Crowd" |
| Detective Comics Vol. 2 #29 (May 2014): "Gothtopia, Part 3: The Truth & Nothing But" |
| Forever Evil #1 (November 2013): "Nightfall" |
| Forever Evil #2 (December 2013): "Rats" |
| Forever Evil: Arkham War #1 (December 2013): "Arkham War - Batman Death March" |
| Forever Evil: Arkham War #5 (April 2014): "Arkham War: Evolution" |
| Forever Evil: Arkham War #6 (May 2014): "Arkham War: World War Gotham" |
| Batman Eternal #1 (June 2014): "Batman Eternal" |
| Batman Eternal #7 (July 2014): [No Title] |
| Batman Eternal #10 (August 2014): "When Animals Attack" |
| Batman Eternal #12 (August 2014): "The Good Man" |
| Batman Eternal #16 (September 2014): "The Monster Machine" |
| Teen Titans Vol. 5 #15 (February 2016): "On the Run" |
| Nightwing Vol. 4 #17 (May 2017): "Nightwing Must Die!, Part Two" |
| Nightwing Vol. 4 #18 (June 2017): "Nightwing Must Die!, Part Three" |
| Batwoman Vol. 3 #11 (March 2018): "Pygsty" |
| Batgirl and the Birds of Prey #15 (December 2017): "Manslaughter, Part 1: Quarantine" |
| Red Hood and the Outlaws Vol. 2 #14 (November 2017): "Bizarro Reborn, Part 1" |
| Harley Quinn Vol. 3 #44 (August 2018): "One of My Turns, Part Two" |
| Nightwing Vol. 4 #48 (November 2018): "Harm's Way, Part One" |
| Nightwing Vol. 4 #49 (November 2018): "Harm's Way, Part Two" |
| Wonder Twins #4 (July 2019): "A Date That Will Live In Infamy" |
| Harley Quinn's Villain of the Year #1 (February 2020): "Harley Quinn's Villain of the Year" |
| Batman Vol. 3 #75 (September 2019): "City of Bane, Part 1" |
| Batman Vol. 3 #80 (December 2019): "City of Bane, Part 6" |
| Batman Vol. 3 #94 (September 2020): "Their Dark Designs, Finale" |
| Doomsday Clock #6 (September 2018): "Truly Laugh" |
| Catwoman Vol. 5 #23 (September 2020): "We've Got Fun & Games" |
| Catwoman Vol. 5 #24 (October 2020): "The Price to Pay" |
| Batman Vol. 3 #98 (November 2020): "The Joker War, Part Four" |
| Batman Vol. 3 #104 (February 2021): "Ghost Stories, Part 3" |
| Infinite Frontier #0/3 (May 2021): [Batman] |
| Batman: Urban Legends #8/2 (December 2021): "Little Pyg. Little Pyg" |
| Arkham City: The Order of the World #1 (December 2021): "Arkham City: The Order of the World, Chapter 1" |
| Arkham City: The Order of the World #2 (January 2022): "Arkham City: The Order of the World, Chapter 2" |
| Arkham City: The Order of the World #4 (March 2022): "Arkham City: The Order of the World, Chapter 4" |
| Arkham City: The Order of the World #5 (April 2022): "Arkham City: The Order of the World, Chapter 5" |
| Arkham City: The Order of the World #6 (May 2022): "Arkham City: The Order of the World, Finale" |
| Batman Incorporated Vol. 3 #6 (May 2023): "This Little Piggy, Part 1" |
| Batman Incorporated Vol. 3 #7 (June 2023): "This Little Piggy, Part 2" |
| Punchline: The Gotham Game #3 (February 2023): "Punchline: The Gotham Game, Part 3" |
Future timeline |
| Batman #666 (July 2007): "Batman in Bethlehem" |