List of Japanese voice actors

A

 * Rikako Aikawa - Strika
 * Masaki Aizawa - Recoil, Firebolt (Rebirth dub)
 * Satomi Akesaka - Atari Hitotonari
 * Miyoko Aoba - Clipper (V), Madonna ("Arise, Pretenders!!")
 * Makoto Aoki - Strongarm, Cadet A (Energon #4), Researcher (#6)
 * Takeshi Aono - Deszaras
 * Masumi Asano - Energon Arcee, Sally, Miranda (Energon)
 * Chieko Atarashi - Kelly (Armada #19)

B

 * Hitoshi Bifu - Autocrusher, Terror Mandar

C

 * Chafūrin - Cicadacon
 * Isshin Chiba - Cyclonus, Silverbolt (Armada), Snowcat, Diagnostic Drone (BM), Tim (Cybertron #26-52)
 * Shigeru Chiba - Megatron (BW)
 * Susumu Chiba - Jetfire, Wheeljack (Armada), Cybertron Sideways
 * Katsumi Chō - Unicron (Armada)

D

 * Jin Domon - Cybertron Override

E

 * Masashi Ebara - Brawl, Broadside, Dead End, Long Haul, Pounce, Ratchet, Scamper, Seaspray, Shrapnel, Skywarp, Smokescreen, Steeljaw, Teletraan-I, Spike Witwicky (adult), B.O.T. ("B.O.T."), Victor Drath ("Only Human"), Dirk Manis ("Money is Everything"), Nikodon ("The Face of Nijika"), Skuxzoid ("Grimlock's New Brain"), Gregory Swafford ("The Return of Optimus Prime"), TORC3 ("Day of the Machines"), Wigend du Blackthorne ("A Decepticon Raider in King Arthur's Court")
 * Hisao Egawa - Cybertron Overhaul, Leobreaker, Nemesis Breaker
 * Hiroko Emori - Cab, Alyssa (HM #12), Cran (HM #19)
 * Junichi Endō - Carlos Lopez, Galvatron (Energon)
 * Masashi Endō - Scorponok (BW)
 * Miyako Endō - Jan Minakaze

F

 * Mami Fukai - Miki (CR #22, 36-37)
 * Rica Fukami - Stewardess ("Abducted!? The Targeted Jumbo Jet")
 * Keiji Fujiwara - Dinobot (BW), Scavenger (Armada)
 * Yukari Fujiwara - Cathy (V#8)
 * Tōru Furusawa - Dr. Paul Gates ("Day of the Machines")

G

 * Tesshō Genda - Optimus Prime, Omega Supreme, Primus
 * Banjō Ginga - Scorponok, Mega Zarak, Black Zarak, Clamp's father (V#23)
 * Hozumi Gōda - Lio Convoy
 * Daisuke Gōri - Dauros, Dinoking, Gōryū, Violenjiger, Peckinpah (MF#24)
 * Masumi Gotō - Firestar, Daniel Witwicky (2010), Luisa ("Fire on the Mountain"), Nimue ("A Decepticon Raider in King Arthur's Court")

H

 * Kimie Hantani - Girl A (MF#23)
 * Masao Harada - Hepter, Kenta's Father (CR #4, 7)
 * Hiroaki Harakawa - Santon (BW2)
 * Satoshi Hashimoto - Fire Convoy
 * Wataru Hatano - Robotmaster Optimus Prime
 * Show Hayami - Blast Off, Cutthroat, Ironhide, Lightspeed, Sixknight, Tracks, Ultra Magnus, Vector Prime, Spike Witwicky (teenage), Narrator (Cybertron), Ralt ("Sea Change" [TF])
 * Akari Hibino - Cancer
 * Chieko Higuchi - AI, Artemis, Junko
 * Keiji Hirai - Autrooper Rat #4
 * Chie Hirano - Vector Sigma (NEO)
 * Masato Hirano - Drillhorn, Hardhead (HM), Kakuryū, King Poseidon, Phoenix, Turtler, Dr. Minakaze (V#3)
 * Yoshikazu Hirano - Dashtacker, Waver
 * Daisuke Hirakawa - Cybetron Hot Shot
 * Eriko Hirata - Lori's Mother, TV Reporter (Cybertron #25)
 * Hiroaki Hirata - Cybertron Ransack, Evac, Lori's Father Ernesto
 * Ryō Hirohashi - Child ("Carnival")
 * Shingo Hiromori - Laster, Galaxy Shuttle, Carl (HM #21)
 * Masashi Hironaka - Doryū, Landcross, Victory Narrator, Wing, Wingwaver
 * Masashi Hirose - Searchlight
 * Aya Hisakawa - Boarder (V), Joyce (V)
 * Nobuyuki Hiyama - Rampage (BW), Spiderbot (BW), Jetfire (Energon)
 * Katsuhisa Hōki - Armada Smokescreen, Armada Hoist
 * Hideyuki Hori - Chromedome
 * Yukitoshi Hori - Foreman (MF#13), Sailor B (MF#34)
 * Hitoshi Horikawa - Haywire
 * Ryō Horikawa - Moon Radar
 * Kenyū Horiuchi - Air Raid, Defensor, Divebomb, First Aid, Grapple, Hound, Octane, Pipes, Rippersnapper, Sludge, Springer, Sunstreaker, Raoul ("Make Tracks", "Auto-Bop" [TF]), Mok ("Sea Change" [TF]), Yoshikawa ("Kremzeek" [TF])

I

 * Hiroaki Ichinowatari - Sea Phantom
 * Teiyū Ichiryūsai - Chang ("God Jinrai Saves Cancer!?" [MF] )
 * Yōji Ietomi - Heinrad
 * Michihiro Ikemizu - Doublecross, Greatshot, Sixshot, Triggerhappy, Platina Tiger
 * Haruna Ikezawa - Transmutate
 * Norio Imamura - Gas Skunk
 * Minoru Inaba - Cyclonus, Predaking, Razorclaw, Scattershot, Swerve
 * Junichi Inoue - Big Convoy
 * Masako Inui - Sean ("Vacation" [Armada])
 * Mika Ishibashi - Stampy
 * Takao Ishii - Wideload
 * Toshiro Ishii - Afterburner, Brawl, Gears, Kickback, Prowl, Ramjet, Scrapper, Slag, Unicron (2010), Wreck-Gar, Sparkplug Witwicky, Abdul Fakkadi, Aethling the Red ("A Decepticon Raider in King Arthur's Court"), Dr. Archeville ("Countdown to Extinction"), Sean Berger ("Megatron's Master Plan"), Bosch ("The Gambler"), Lord Chumley ("Prime Target"), Inquirarta, Kranix, Mara Al-Utha ("Madman's Paradise"), Mark Morgan ("Return of Optimus Prime"), King Nergil ("Atlantis, Arise"), Oracle ("Call of the Primitives"), Vector Sigma ("The Key to Vector Sigma"), Dr. Branew ("Abducted!? The Targeted Jumbo Jet")
 * Daisuke Ishikawa - Motorarm
 * Hideo Ishikawa - Cybertron Jetfire
 * Hiroya Ishimaru - Hot Rod, Rodimus Prime
 * Katashi Ishizuka - Tasmania Kid
 * Miki Itō - Papika (HM #22)
 * Tetsuya Iwanaga - Airazor
 * Mantarō Iwao - Skywarp II (BW2)
 * Masami Iwasaki - Bighorn, Build Cyclone, Hardhead (NEO), Wrecker Hook
 * Mitsuo Iwata - Silverbolt (BW), Jetstorm (BM), Ironhide (Energon)
 * Shōji Izumi - J-Five, Dr. Daichi Ōnishi

K

 * Yūko Kaida - Teacher ("First Encounter" [A])
 * Hirohiko Kakegawa - Battletrap, Braver, FastTrack, Jarguar, Yokuryu, Rabbit Kid
 * Rie Kanda - Child ("Carnival" [A])
 * Holly Kaneko - Dolrailer, Guiledart
 * Yoshinobu Kaneko - Elphaorpha
 * Nobutoshi Kanna - Inferno (Energon), Shockblast, Sixshot (Energon), Nightscream (BM), Oracle (BM)
 * Yui Kano - Lǐ Shāo-Shāo
 * Shōko Kanoki - Dr. Harding ("Attack of the Autobots")
 * Yasuyuki Kase - Cybertron Red Alert, Brimstone
 * Tsutomu Kashiwakura - Lightfoot, Rabbit Crater
 * Kōki Kataoka - Bluestreak, Dragstrip, Hoist, Jazz, Sideswipe, Chac ("Sea Change")
 * Kensō Katō - Waspinator, Thrust (BM)
 * Masayuki Katō - Smokesniper, Gigantosniper, Robotmasters Lio Convoy
 * Nanae Katō - Clocker
 * Seizō Katō - Megatron, Devastator, Galvatron, (G1)
 * Masako Katsuki - Arcee (2010), Allegra ("Carnage in C-Minor"), Chromia ("The Search for Alpha Trion") Nijika ("The Face of Nijika")
 * Kunihiro Kawamoto - Decepticon ("Dash" [Armada]), Starscream (Robot Masters), Narration (Robot Masters)
 * Takuo Kawamura - Cameraman ("Vacation" [Armada])
 * Yōko Kawanami - Arcee (HM)
 * Eriko Kawasaki - Child ("Carnival" [Armada])
 * Yūto Kazama - Snarl (Cybertron), Cybertron Menasor, Optimus Primal (Robot Masters), Victory Leo (Robot Masters)
 * Akiko Kimura - Yūki Ōnishi
 * Masafumi Kimura - Cybertron Undermine, Lugnutz, Cybertron Metroplex
 * Yūji Kishi - Scuba, Drillnuts
 * Yukimasa Kishino - General Ram Horn (BW), Bee Soldier (HM #19)
 * Daisuke Kishio - Kicker (Energon)
 * Takurō Kitagawa - Astrotrain, Cliffjumper, Grimlock, Headstrong, Inferno, Lightspeed, Mirage, Ramhorn, Scavenger, Skydive, Warpath, Autobot X ("Autobot Spike"), Dashiell Faireborn ("The Killing Jar"), Dutch ("Only Human"), Roland ("B.O.T."), Maharaja ("The Ultimate Doom")
 * Riki Kitazawa - Greejeeber, W.A.R.S.
 * Masayuki Kiyama - Brave Maximus, Plasma
 * Kei Kobayashi - Coby's mother
 * Michitaka Kobayashi - Highbrow
 * Yumiko Kobayashi - Lio Junior
 * Yōichi Kobiyama - Gigatron
 * Nobuyuki Kobushi - Fred, Sideswipe (Armada)
 * Hajime Komada - Bazooka
 * Kazue Komiya - Elita-One, Wheelie, Carly Witwicky (adult), Marissa Faireborn, Aron ("Child's Play"), Junkion Lady Nancy ("Big Broadcast of 2006")
 * Tetsuo Komura - Galvatron II, Narration (BW2)
 * Hideki Konda - Sharpedge, Shuttler
 * Takayuki Kondō - Dangar, Mach Alert
 * Katsuyuki Konishi - Grand Optimus Prime (Energon)
 * Konta - Gelshark
 * Makoto Kōsaka - Pipiro (HM #12)
 * Takehito Koyasu - Optimus Primal
 * Takaya Kuroda - Starscream (Cybertron), Fire Chief (Cybertron #9)
 * Nami Kurokawa - Bud (Cybertron)
 * Takeshi Kusao - Double Clouder
 * Taiten Kusunoki - Black Convoy (CR), Galaxy Optimus Prime (Cybertron), Rad's father ("Depart" [A])
 * Hōko Kuwashima - Cybertron Jolt
 * Natsuko Kuwatani - Cybetron Thunderblast

L

 * Lyrian - Marissa Faireborn (Kiss Players)

M

 * Takeshi Maeda - Gimlet
 * Yukie Maeda - Carlos Lopez (Armada), Sureshock, Alpha Q (female)
 * Monster Maezuka - Sling, Narration (NEO)
 * Kei Majima - Crazybolt
 * Tomoko Maruo - Fire (V), Rami (V), Boy A (MF#23)
 * Issei Masamune - Soundwave, Soundblaster, Narrator (TF-HM)
 * Mari Mashiba - Enara of Odessix
 * Yasunori Masutani - Scorponok (Energon)
 * Naomi Matamura - J-Four
 * Mami Matsui - Mac (HM #19)
 * Miwa Matsumoto - Scylla
 * Takako Matsumoto - Boy ("Underground" [A])
 * Ginzō Matsuo - Director (MF#22)
 * Takashi Matsuyama - Gigastorm, God Magnus, Megastorm, Powerhug, Rockbuster
 * Shinichirō Miki - Inferno (BW)
 * Yūji Mikimoto - Apeface, Blackshadow, Diver (MF), Pointblank
 * Junichi Miura - X-Car
 * Kenta Miyake - Landmine, Omega Supreme (Energon)
 * Maki Miyamae - DNAVI
 * Yasuhiro Miyata - Killer Punch
 * Tadashi Miyazawa - Autostinger, Coelagon
 * Sanae Miyuki - Girl (MF#5)
 * Seiji Mizutani - Dead End (NEO)
 * Kenichi Mochizuki - Cybertron Brakedown, Cybertron Crosswise, Cybertron Quickmix, Coby's father, Sheriff, Old Man
 * Katsuji Mori - Metalhawk, Weirdwolf
 * Norihisa Mori - Scissorboy
 * Toshiyuki Morikawa - Ravage (BW)
 * Rika Morinaga - Lori (Cybertron)

N

 * Mariko Nagahama - Kenta, Reporter (CR)
 * Yuka Nagamine - Mother (V#8)
 * Yoshikazu Nagano - Build Typhoon, Survive
 * Yūichi Nagashima - Tarantulas, Shark Launcher (BW), Noble, Alpha Q, Tanker Captain ("Day of the Machines")
 * Ryō Naitō - Counter Arrow, D.J., Gusher, Hydra (NEO), Ikard Octoba Barks
 * Masataka Nakai - Rad, Grindor
 * Toshihiko Nakajima - Cybertron Crumplezone, Dark Crumplezone
 * Daiki Nakamura - Rhinox, Tankor
 * Hidetoshi Nakamura - Vok Unicron
 * Kenji Nakano - Diver (BW2)
 * Michio Nakao - Crew (MF#10), Driver D (MF#11), Pilot (MF#18), Patron (MF#19)
 * Tomoki Nakao - Mikesu (NEO #2:"Follow the Mystery Capsule!")
 * Jōji Nakata - Master Megatron
 * Keiichi Nanba - Blitzwing, Blaster, Bonecrusher, Breakdown, Dirge, Leozak, Liokaiser, Rampage, Rumble, Skids, Twincast, Wilder, Windcharger, Chip Chase, White Leo (HM), Harold Edsel ("Hoist Goes Hollywood"), Dr. Fujiyama ("Enter the Nightbird"), Hassan ("Aerial Assault"), Martin ("B.O.T."), Ozu ("The Burden Hardest to Bear"), Primacron ("Call of the Primitives"), Witch ("Nightmare Planet"), Police (HM #13)
 * Ken Narita - Construction Robo ("Day of the Machines")
 * Chōtomi Nimura - Eagle Killer (CR)
 * Rintarō Nishi - Col. Franklin (Cybertron)
 * Kazuhiko Nishimatsu - God Neptune, Halfshell
 * Mizue Nishimori - OPErator (NEO)
 * Jin Nishimura - Indy Heat
 * Tomomichi Nishimura - Deathcobra, Misfire, Runamuck, Silverbolt, Sinnertwin, Superion
 * Keiichi Noda - Overlord, Raiden, Shōki, Giga, Dr. Gō, Narrator (MF, Z)

O

 * Sanryō Odaka - Apache
 * Shinji Ogawa - Dr. Lordan ("Rescue the Girl! Super-God Warrior Godmasters" [MF])
 * Teruaki Ogawa - Mach Kick
 * Kuniko Oguchi - Mrs. Minakaze (V#3)
 * Kazuo Oka - Fastlane, Getsuei, Snapdragon
 * Kōsuke Okano - Hot Shot (Armada)
 * Tōru Ōkawa - Armada Optimus Prime, Nemesis Prime
 * Ryōtarō Okiayu - Rodimus (Energon), Hot Rod (Kiss Players)
 * Keiji Okuda - Cadet B (Energon #4)
 * Masaaki Ōkura - Operator (HM #7)
 * Yuka Ōno - Operator (MF#10), Nurse (MF#25)
 * Masaya Onosaka - Observation B (V#23), Obsidian
 * Hōchū Ōtsuka - Crosshairs, Guyhawk, Ranger, Wingspan, Big Serow
 * Kōhei Owada - Autojetter, Randy

P

 * Punch UFO - Speedbreaker

R

 * Show Ryuzanji - Magmatron

S

 * Jirō Saitō - Reverse Convoy, Rebirth Megatron (Robot Masters)
 * Nobuyuki Saitō - Rarto-Rarta
 * Osamu Saka - A3, Alpha Trion, Beachcomber, Cosmos, Groove, Kup, Metroplex, Rampage, Rykle (V), Skyfire, Swindle, Wheeljack, Abdul Ben-F'aisal ("Trans-Europe Express"), Ali ("Aerial Assault"), Beorht ("A Decepticon Raider in King Arthur's Court"), Golden One ("Madman's Paradise"), Gyconi ("The Gambler"), Katsudon ("The Face of Nijika"), Tlaloc ("Sea Change")
 * Kenichi Sakaguchi - TORC Guard ("Day of the Machines")
 * Takahiro Sakurai - Sideways
 * Junji Sanechika - Thrust II, Thrustor (BW2)
 * Run Sasaki - Alana ("Sea Change"), Astoria Carlton Ritz ("The Girl Who Loved Powerglide"), Elisse Presser ("B.O.T."), Michelle ("Only Human"), Moonracer ("The Search For Alpha Trion")
 * Yūko Sasaki - Karen Fishhook ("Hoist Goes Hollywood")
 * Chie Satō - Sam (V#6)
 * Masaharu Satō - Kaen, Gilmer, Guard Minder, Punch-Counterpunch, Sureshot, Bee Drone (HM #19), Leftfoot (MF#22), Frank (V#6)
 * Yūki Satō - Dash, Flywheels, Gairyū, Mach, Machtackle, Sunrunner
 * Shinobu Satouchi - Rairyū, Tackle
 * Ikuya Sawaki - Fortress Maximus, Grand Maximus, Armada Red Alert
 * Mayumi Seto - Microtransformer B (Z)
 * Masahiro Shibahara - Wild Ride
 * Hidekatsu Shibata - Devil Z
 * Yumiko Shibata - Monkey ("Revolt on Planet Beast")
 * Tomo Shigematsu - Rad's mother ("Depart" [Armada])
 * Yutaka Shimaka - Brawn, Bruticus, Huffer, Mixmaster, Nosecone, Onslaught, Ravage, Scourge, Sideswipe, Shockwave, Tantrum, Thrust, Thundercracker, Trypticon, Wildrider, Augie Cahnay ("Trans-Europe Express"), Basso Profundo ("Carnage in C-Minor"), Krishna Giant ("Nightmare Planet"), Tornedron ("Call of the Primitives")
 * Junko Shimakata - Microtransformer A (Z)
 * Toshitaka Shimizu - Autobot ("Past" [Armada])
 * Hiroshi Shimozaki - Dr. Yoshimoto ("Secret Weapon: D5")
 * Tomoyuki Shimura - Cybertron Landmine
 * Tarusuke Shingaki - Billy (Armada), Cybertron Scattorshot,
 * Kaneto Shiozawa - Road King, Sonic Bomber
 * Kōzō Shioya - Bullhorn
 * Yoku Shioya - Bumblebee, Buster, Computron, Fireflight, Goldbug, Hellbat, Hook, Sandstorm, Sixgun, Outback, Red Alert, Reflector, Runabout, Rewind, Streetwise, Swoop, Teletraan-II
 * Ken Shiroyama - Abominus, Blades, Bombshell, Fireflight, Frenzy, Hun-Gurr, Inquirarta, Perceptor, Skids, Snarl, Tailgate, Trailbreaker, Vortex, Dr. Archeville ("The Ultimate Doom"), Coach ("Triple Takeover"), Dion ("War Dawn"), Dinsmore ("Prime Taget"), Director ("Hoist Goes Hollywood"), Guardian Gadep ("War Dawn"), Dr. Haley ("Blaster Blues"), Kendo Sensei ("The Burden Hardest to Bear"), Kremzeek ("Kremzeek"), Mayor ("Megatron's Master Plan")
 * Mayumi Shō - Mary ("Go, Go Shooter: Wilderness Showdown")
 * Yū Sugimoto - Mama ("Underground" [A])
 * Junichi Suwabe - Tim (Cybertron #1-11)
 * Katsumi Suzuki - Bluestreak, Frenzy, Wheeljack ("Attack of the Autobots" & "Day of the Machines" only)
 * Mizuho Suzuki - Unicron ("The Movie")
 * Tomiko Suzuki - Daniel Witwicky (HM), Tony (MF#15)
 * Hirotaka Suzuoki - Starscream, Powerglide, Slingshot, Devcon ("The Gambler")

T

 * Kaori Tagami - Navi (NEO)
 * Yukiko Tagami - Mischa
 * Reiko Takagi - Amphitrite ("Ruin" [Armada])
 * Wataru Takagi - Cheetor
 * Hiroki Takahashi - Build Hurricane, Guildor, Hellscream, Mantis, Starscream II
 * Akimitsu Takase - Freeway
 * Gara Takashima - Carly (teenage), Jessica Morgan ("Return of Optimus Prime"), Princess ("Nightmare Planet")
 * Toshitsugu Takashina - Giganto-Bomb
 * Eiji Takemoto - Artfire, Dirge II, Dirgegun, J-Seven, Dr. Akashi (CR #5, 37)
 * Hiroshi Takemura - Jinrai, Victory Leo, Chris ("Go, Go Shooter: Wilderness Showdown")
 * Taketora - Mudflap, Cybertron Buzzsaw, Cybertron Soundwave, Satellite TF
 * Junko Takeuchi - Break, Moon
 * Masaya Taki - Tom (V#15)
 * Mariko Takigawa - President (Cybertron)
 * Yukiko Tamaki - Build Boy, Coby (Cybertron)
 * Ren Tamura - Archadis
 * Kenichirō Tanabe - Tonbot
 * Atsuko Tanaka - Botanica
 * Hideyuki Tanaka - Starsaber, Victory Saber
 * Hirofumi Tanaka - Legion
 * Kazumi Tanaka - Killbison, Kirk, Suiken
 * Kazunari Tanaka - Thundercracker (Cybertron)
 * Masahiko Yanaka - Backstop
 * Mayumi Tanaka - Daniel ("The Movie")
 * Ryōichi Tanaka - Blue Bacchus, Brainstorm, Lander, Cobra Commander Snake ("Only Human"), Mining Engineer (V#8)
 * Rika Taniguchi - Young Woman ("Runaway" [A])
 * Isamu Tanonaka - Donku (MF)
 * Kōichi Tateishi - Dōmya (NEO #3:"Burning Spirit Below Freezing")
 * Naoki Tatsuta - Mindwipe
 * Haruhi Terada - Navichan (BW2)
 * Kōichi Tōchika - Tigatron, Tigerhawk
 * Nobuo Tobita - Quickstrike, Terrorsaur, Starscream (Energon)
 * Akiko Toda - young Rad ("Drift" [Armada])
 * Kan Tokumaru - Jerman ("Assemble! Godmaster Four Musketeers" [MF])
 * Yumi Tōma - Go Shooter, Emusa, Gō Shūta, Illumina
 * Akira Tomisaka - Alexis, High Wire, Perceptor (Armada)
 * Masanori Tomita - Great Convoy (NEO)
 * Kyōko Tongu - Hōrī
 * Kosuke Toriumi - Hot Shot (Energon)
 * Kōji Totani - Blacker, Blood, Menasor, Motormaster, Road Caesar, Skullcruncher, Sky Lynx, Judge Deliberada ("Five Faces of Darkness"), Russian Officer ("Thief in the Night")
 * Machiko Toyoshima - Lucy Suzuki
 * Hiromi Tsuru - Kopo ("Rescue the Girl! Super-God Warrior Godmasters" [MF])
 * Satoshi Tsuruoka - Commander Strada (NEO #16 "Planet of the Strongest Weapon")

U

 * Shinji Uchida - Drancron
 * Yōji Ueda - Decepticon Commander ("Dash" [Armada])
 * Makoto Ueki - Colada
 * Jun Uemoto - Longrack
 * Noriko Uemura - Child (MF#15), Clamp (V#31)
 * Megumi Urawa - Girl B (MF#23)
 * Takayasu Usui - Wing Saber (Cybertron), Dirt Boss (Cybertron), Signal Lancer, Stanton (Cybertron #2)

W

 * Norio Wakamoto - Cybertron Scourge
 * Naoko Watanabe - Akira
 * Takeshi Watanabe - B.B., Big Mos, Max B

Y

 * Masahito Yabe - Wingstun
 * Eiko Yamada - Ariel ("War Dawn"), Beta ("Forever is a Long Time Coming"), Cain (Z)
 * Fushigi Yamada - Browning, Cab's Parrot
 * Reiko Yamada - Mother Superior Mable (V)
 * Kappei Yamaguchi - Rattrap
 * Ken Yamaguchi - Blot, Blurr, Cloudraker, Hydra (MF), Slugslinger, Goldar ("Revolt on Planet Beast" [HM]), Arblus ("The Movie"), Zebop Scandanna ("Carnage in C-Minor"), Ship Captain ("Arise, Pretenders!!")
 * Yuriko Yamamoto - Minerva
 * Jin Yamanoi - Armada Starscream, Tidal Wave, Skyblast, Dr. Jones, Energon Mirage
 * Kiyoyuki Yanada - Depth Charge, Armada Megatron
 * Michiyo Yanagisawa - Hitoshizuka Amaō
 * Jōji Yanami - Sea Clamp
 * Kazuki Yao - Saberback
 * Maki Yaosaka - Teacher (MF#23)
 * Yusaku Yara - Dai-Atlas, Minerva's Father ("Kidnapped!? The Targeted Jumbo Jet" [MF])
 * Kunihiko Yasui - Rollbar
 * Makoto Yasumura - Energon Prowl, Energon Downshift, Energon Bruticus
 * Eisuke Yorita - Ox
 * Mari Yokoo - Queen Bee (HM #19)
 * Rihoko Yoshida - Mega
 * Hinako Yoshino - Pīpō
 * Kōji Yusa - Demolishor, Thrust (Armada), Wing Saber, Sean's father ("Vacation" [Armada])
 * Ryōka Yuzuki - Black Arachnia, Predacon Computer NaviCo, Una, Vehicon Computer