View source for October 23

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* '''19?? —''' [[John Steven Rocha]] (voice of [[Springload (RID)|Springload]]) is born to be an outlaw.
* '''[[1926]] —''' [[Stan Jones]] (voice of the [[The Transformers (cartoon)|original ''The Transformers'' cartoon]] [[Scourge (G1)|Scourge]], [[Zarak (G1)|Zarak]] and others) is born.
* '''[[1927]] —''' [[Mizuho Suzuki]] (voice of [[Unicron/Generation 1|Unicron]] in the Japanese dub of ''[[The Transformers (cartoon)|The Transformers]]: [[The Transformers: The Movie|The Movie]]'') is born.
* '''[[1959]] —''' Musician [["Weird Al" Yankovic]] (voice of ''[[Transformers Animated (cartoon)|Animated]]'' [[Wreck-Gar (Animated)|Wreck-Gar]] and also [[Cosmos (ES)|Cosmos]]) graces the universe by being born.
* '''[[1961]] —''' [[Bernhard Völger]] (German voice of [[Smokescreen (Prime)|Smokescreen]], [[Blades (RB)|Blades]] and more) is born.
* '''[[1963]] —''' [[Mônica Rossi]] (Brazilian voice of [[Carly (G1)|Carly]], [[Astoria Carlton-Ritz]] and [[Terratronus]]) is born.
* '''[[1964]] —''' [[David Sobolov]] (voice of [[Depth Charge (BW)|Depth Charge]], [[Brawl (Movie)|Brawl]], [[Shockwave (WFC)|Shockwave]], [[Blitzwing (BB)|Blitzwing]], [[Battletrap (ROTB)|Battletrap]], [[Apelinq (ROTB)|Apelinq]] and more) is born bald. Keezy Fem!
* '''[[1968]] —''' Comic artist [[Gary Erskine]] is born in Paisley, [[Scotland]].
* '''[[1973]] —''' Actor [[Louis-Philippe Dandenault]] (Canadian French voice of [[Colan|Professor Colan]] and [[Crosshairs (AOE)|Crosshairs]] in the [[live-action film series]]) is born.
* '''[[1977]] —''' Executive producer [[Dana Vasquez-Eberhardt]] is born.
* '''[[1984]] —''' [[Pauliina Virta]] (Finnish voice of [[Misha Miramond]], [[Lucy Suzuki]] and [[Thunderblast (Decepticon)|Thunderblast]]) is born.
* '''[[1985]] —''' Comic artist [[Josh Burcham]] is born.
* '''1985 —''' The [[The Transformers (cartoon)|Generation 1]] episode "[[Blaster Blues]]" premieres in the [[United States of America|U.S.]]
* '''[[1998]] —''' [[Beast Wars II: Super Lifeform Transformers (cartoon)#Home video releases|''Beast Wars II'' — ACT. 7]] is released on [[Home video|VHS]] in [[Japan]] by [[Geneon Universal Entertainment|Pioneer LDC]].
* '''[[2002]] —''' ''[[Transformers: Generation 1 (Dreamwave)|Generation 1]]: [[Prime Directive]]'' [[Prime Directive issue 6|#6]] is released by [[Dreamwave Productions]].
* '''[[2002]] —''' ''[[Fight! Super Robot Lifeform Transformers (franchise)|Transformers]]: [[Fight! Super Robot Lifeform Transformers: The Comics|The Comics]]'' is released in [[Japan]] by [[Hero-X|Million Publishing]].
* '''[[2008]] —''' ''[[Henkei! Henkei! Transformers (pack-in manga)|Henkei! Henkei!]]'' [[Henkei! Henkei! volume 6|volume 6]] is first released.
* '''2008 —''' [[TakaraTomy]] releases ''[[Henkei! Henkei! Transformers (toyline)|Henkei! Henkei!]]'' C-09 [[Sideswipe (G1)/toys#Henkei! Henkei!|Lambor]], C-10 [[Bluestreak (G1)/toys#Henkei! Henkei!|Cybertron Streak]] and D-05 [[Octane#Henkei! Henkei!|Destron Octone]].
* '''2008 —''' [[Titan Books|Titan]] releases the [[Animated Comic issue 1|first issue]] of their ''[[Transformers Animated (Titan)|Animated]]'' comic.
* '''[[2009]] —''' ESPN and [[NASCAR]]'s "[[Choose Your Side & Win|Transformers - Choose your side & win]]" sweepstakes ended at 11:59 PM.
* '''[[2010]] —''' The ''[[Transformers Animated (cartoon)|Animated]]'' episode "[[Three's a Crowd|The Tough Dirt Boss]]" premieres in [[Japan]].
* '''[[2012]] —''' The ''[[Transformers: Prime (cartoon)|Prime]]'' episode "[[Orion Pax, Part 2]]" premieres in [[Germany]].
* '''2012 —''' The ''[[Transformers: Prime (cartoon)|Prime]]'' episode "[[Tunnel Vision]]" premieres in [[Italy]].
* '''[[2013]] —''' ''[[The Transformers: Regeneration One|Regeneration One]]'' [[Destiny, Part Five|#95]] and ''[[The Transformers: Last Stand of the Wreckers|Last Stand of the Wreckers]]'' HC (Red Label Edition) are released by [[IDW Publishing]].
* '''[[2014]] —''' ''[[Transformers Cloud|Cloud: Spacetime World: Guardians of Time]]'' [[Fury (Cloud)|Chapter 4: Part 5]] is first released.
* '''[[2018]] —''' The ''[[Transformers: Cyberverse (cartoon)|Cyberverse]]'' episode "[[Allspark (episode)|Allspark]]" premieres in [[Portugal]].
* '''[[2020]] —''' ''[[Transformers: Battlegrounds|Battlegrounds]]'' is released for [[Nintendo Switch]], [[PlayStation|PlayStation 4]], [[Xbox|Xbox One]], and PC.
* '''2020 —''' [[TakaraTomy]] releases ''[[War for Cybertron Trilogy (toyline)|War for Cybertron Trilogy]]'' WFC-03 [[Chromia (G1)#War for Cybertron Trilogy|Chromia]] and WFC-04 [[Sideswipe (G1)/toys#War for Cybertron Trilogy|Sideswipe]] and ''[[Studio Series]]'' SS-57 [[Blitzwing (BB)#Studio Series|Blitzwing]], plus ''[[War for Cybertron: Earthrise|Earthrise]]'' ER EX-11 [[Blast Master#War for Cybertron: Earthrise|Blast Master]] & [[Phaser (G1)#War for Cybertron: Earthrise|Fuzer]] and ER EX-12 [[Airwave (facility)#War for Cybertron: Earthrise|Airwave]] are released as [[TakaraTomy Mall]] [[exclusive]]s.
* '''[[2021]] —''' The second day of the [[Hasbro Pulse Con 2021]] virtual convention on YouTube, no new ''Transformers'' content on this day though.
* '''[[2024]] —''' ''[[Transformers One (film)|Transformers One]]'' is theatrically released in [[France]].
* '''2024 —''' ''[[Void Rivals]]'' [[Void Rivals issue 13|#13]] is released by [[Image Comics]] and [[Skybound Entertainment]].