Enormous in both size and power, Trypticon is an unstoppable engine of destruction. Utterly relentless, totally without mercy, steadfastly unwilling to stop his attack until all that is left of his target is their smoldering remains, he is programmed only to feel hate. That, however, is also Trypticon's downfall—for all he can do is hate. He loathes the Autobots to the extent that he would destroy an entire city just to get at one, but he also hates his fellow Decepticons, and that, in turn, means he is not emotionally committed to their cause, as he sees just as little value in them and what they stand for as he does in anything else. Consequently, though he has accepted what he sees as his fated role as the ultimate Decepticon weapon, the war seems pointless and boring to him. It is a prison... and deep down, as much as he refuses to acknowledge it, the most powerful hatred Trypticon feels is hate for himself, for allowing him to be trapped in it.

Headmasters starts with Galvatron leading a new batch of Destrons to wage war on Seibertron, the Destron Headmasters. The Cybertrons are rescued by the arrival of the Cybertron Headmasters, led by Fortress (Cerebros, the head of Fortress Maximus). It is revealed that Fortress left Seibertron millions of years ago in search of energy, and have finally managed to come home. He explains that the Headmasters are from a planet called Master; the human-sized robots who live there built themselves Transformers-sized bodies. They can then transform themselves into the heads of the robots, and have now joined the Cybertron-Destron war.
 
(Source: Anime News Network)

[Profile](https://www.aoni.co.jp/search/hirano-masato.html)

Non-anime roles:
~!Harenof in "Dragon Quest II" (drama audio)  The Fury in "Metal Gear Solid 3: Snake Eater" (VG, 2004) (Japanese)!~

Starting off as 4koma and published online to promote the titular Transformers Legends toyline, with special Bonus Edition (出張版 Shutchōban) chapters of the comic packed with the toys themselves, it Initially showcased the misadventures of the Beast Wars cast re-imagined as adult Transformers fans, before eventually taking a more story-driven approach and attempting to connect all the entries of the Japanese Generation 1 anime and manga continuity into one storyline. 

Heavily marketed towards adult collectors and otaku in the face of the brand's dwindling popularity with children after TakaraTomy's largely unsuccessful first attempt in the mid-2000s, it attempted to change the image of the Transformers franchise, with much more "adult", often ecchi-filled humour and numerous references to fan culture.
 
Ulltimately concluded when TakaraTomy began a brand unification with Hasbro starting with Power of the Primes, deciding to mainly sell Hasbro toys as is with minimal changes to packaging. It was eventually succeeded by the more action-oriented Generations Selects Special Comic promoting Hasbro and TakaraTomy's joint Generations Selects imprint. (Source: TFwiki, edited)

In the distant future, an evil entity known as Violenjiger resurrects nine of the most feared generals in Destron history. While saving some inhabitants of a planet destroyed by these Destrons, Cybertron leader Victory Saber is seriously damaged. The leadership of the Cybertron forces is passed on to the heroic robot Dai-Atlas. Together with Sonic Bomber, Dai-Atlas must protect a mysterious crystal on Earth known as the "Zodiac" from falling into the hands of Violenjiger.
 
(Source: Anime News Network)

Non-anime roles:
~!Abobo in "Double Dragon" (Neo-Geo) (VG)
Andorf (Andross) in "Star Fox 64" (VG) (Japanese)
Ashuraman in "Kinnikuman Generations" (VG) (Japanese)
Ashuraman in "Kinnikuman Muscle Generations" (VG) (Japanese)
Ashuraman in "Kinnikuman Muscle Grand Prix 2" (VG) (Japanese)
Ashuraman in "Kinnikuman Muscle Grand Prix MAX" (VG) (Japanese)
Ashuraman in "Kinnikuman Muscle Grand Prix" (VG) (Japanese)
Baloo in "The Jungle Book" (Disney animated movie) (Japanese)
Baron Praxis in "Jak II Renegade" (VG) (Japanese)
Bass Armstrong in "Dead or Alive 2 Ultimate" (VG) (Japanese)
Bass Armstrong in "Dead or Alive 2" (VG) (Japanese)
Bass Armstrong in "Dead or Alive 3" (VG) (Japanese)
Bass Armstrong in "Dead or Alive" (VG) (Japanese)
Black Hole in "Kinnikuman Generations" (VG) (Japanese)
Black Hole in "Kinnikuman Muscle Generations" (VG) (Japanese)
Black Hole in "Kinnikuman Muscle Grand Prix 2" (VG) (Japanese)
Black Hole in "Kinnikuman Muscle Grand Prix MAX" (VG) (Japanese)
Borgan in "Lunar 2: Eternal Blue" (VG) (Japanese)
Burnov in "Double Dragon" (Neo-Geo) (VG)
Cobra Bubbles in "Lilo & Stitch" (Japanese)
Dai Maoh in "Super Dodge Ball" (Neo-Geo) (Japanese)
Demon Knight in "Dragon Quest" (drama audio)
Edge Master in "Soul Calibur" (VG)
Elvis in "WILD ARMS the Vth Vanguard" (VG) (Japanese)
General Pepper in "Star Fox 64" (VG) (Japanese)
Gilgamesh in "Final Fantasy XII" (VG)
Heihachi Mishima in "Death by Degrees" (VG) (Japanese)
Heihachi Mishima in "Namco X Capcom" (Japanese)
Heihachi Mishima in "Soul Calibur 2" (VG) (Japanese)
Heihachi Mishima in "Tekken 4" (VG) (Japanese)
Heihachi Mishima in "Tekken 5" (VG) (Japanese)
Hoslow in "Emerald Dragon" (Drama CD) (Japanese)
Illgoga in "Tobal No. 1" (VG) (Japanese)
Jack Mathers in "Time Crisis 4" (VG) (Japanese)
Jirado in "Astal" (Sega Saturn Game)
Lazarus in "Shining Tears" (VG) (Japanese)
Lord Zedd in "Mighty Morphin Power Rangers: The Movie" (live-action movie) (Japanese)
Master in "Xenosaga Episode II: Jenseits von Gut und Bose" (VG) (Japanese)
Mike Bison [Balrog] in "Street Fighter II Made Revenger" (drama audio) (Japanese)
Mr.Satan in "Dragon Ball Z Ultimate Battle 22" (VG) (Japanese)
Mr.Satan in "Dragon Ball Z: Budokai" (VG) (Japanese)
Mr.Satan in "Dragon Ball Z: Sparking!" (VG) (Japanese)
Orson Perrault in "Ace Combat 5: The Unsung War" (VG) (Japanese)
Pigma Dengar in "Star Fox 64" (VG) (Japanese)
Pigma Dengar in "Star Fox Assault" (VG) (Japanese)
Robin Mask in "Kinnikuman Muscle Grand Prix 2" (VG) (Japanese)
Robin Mask in "Kinnikuman Muscle Grand Prix MAX" (VG) (Japanese)
Robin Mask in "Kinnikuman Muscle Grand Prix" (VG) (Japanese)
Robin Mask in "Kinnikuman Nisei: New Generation Choujins vs. Legend Choujins" (VG) (Japanese)
Robin Mask/Barracuda in "Kinnikuman Generations" (VG) (Japanese)
Robin Mask/Barracuda in "Kinnikuman Muscle Generations" (VG) (Japanese)
Scott Dolph in "Metal Gear Solid 2: Sons of Liberty" (VG) (Japanese)
Shingen Takeda in "Samurai Warriors" (VG) (Japanese)
Shingen Takeda in "Samurai Warriors: Xtreme Legends" (VG) (Japanese)
Sigurd Sidmeyer in "Galaxy Angel Moonlit Lovers" (VG) (Japanese)
Taira no Kiyomori in "Genji: Dawn of the Samurai" (VG)(Japanese)
Uighur in "Hokuto no Ken: Seikimatsu kyûseishu densetsu" (VG)
Vargas in "Der Langrisser" (VG) (Japanese)
Volf in "Ninja Gaiden Sigma 2" (VG) (Japanese)
Volt Krueger in "The Bouncer" (VG) (Japanese)
VSSE Director in "Time Crisis 4" (VG) (Japanese)
WRO Fukuchou in "Dirge of Cerberus: Final Fantasy VII" (VG) (Japanese)
Yosemite Sam in "Looney Tunes" (Japanese)
Yosemite Sam in "Space Jam" (Japanese)
Zappa in "Poporogue" (VG) (Japanese)
Zou-Daimaoh in "Puyo Puyo" (PC Engine CD-ROM²) (Japanese)!~

Tie-in manga for the Mystery of Convoy videogame, published in Comic Bom Bom.

Tie-in manga for Hasbro and Takara's Kre-O blocks Transformers product line. The story follows various comedic shenanigans involving Transformers Kre-O sets and figurines, at times retelling the events of Transformers Generation 1 anime's episodes.
 
Note: Chapter count includes a prologue chapter and a special chapter included in the product catalog.

Dinosaurer