Jack - Micron
Jack (Galaxy Force) - Micron
Jackpot - Autobot Strategist
Jake (Grizzly) - Animorph
Jake (Shark) - Animorph
Jake (Tiger) - Animorph
Jake (Tri-Rex) - Animorph
Jaruga - Autobot
Jaruga - Destron Cybernetics Soldier
Javil - Destron Fire Destruction
Jawbreaker - Maximal Close-combat Specialist
Jazz - Autobot Special Operations Agent
Jazz - Autobot Decoy #13
Jazz (Pretender) - Autobot Special Operations / Saboteur
Jazz (Action Master) - Autobot Special Operations
Jazz (Generation 2) - Autobot Special Operations Agent
Jazz (Electrum) - Cybertron Special Ops. Agent
Jazz (Commemorative Series III) - Autobot Special Ops. Agent
Jazz (Spychanger)- Autobot Special Operations Expert
Jazz (Smallest TF) - Cybertron
Jazz (Titanium) - Autobot
Jazz (Robot Heroes, G1) - Autobot
Jazz (Botcon) - Autobot Bodyguard / Special Operations
Jazz (Universe Legends Classics 2.0) - Autobot
Jazz (Movie) (Autobot Jazz) - Autobot
Jazz (Legends) - Autobot
Jazz (Final Battle) - Autobot
Jazz (Target) - Autobot
Jazz (Cyber Slammers) - Autobot
Jazz (Robot Heroes) - Autobot
Jazz (Robot Heroes, Protoform) - Autobot
Jazz (Robot Replicas) - Autobot
Jazz (Ion Blast) - Autobot
Jazz (Allspark Power) - Autobot
Jazz (Robot Heroes, Movie, Wal*Mart) - Autobot
Jazz (Allspark Battles Legends) - Autobot
Jazz (Battle Jazz) - Autobot
Jazz (Premium Series) - Autobot
Jazz (RPMs) - Autobot
Jazz (Animated) - Autobot Elite Ninja
Jazz (Bumper Battlers) - Autobot Cyber-Ninja
Jazz (Freeway) - Autobot Elite Ninja
Jet - Autobot
Jetfire - Autobot Air Guardian
Jetfire (Cyberjet) - Autobot Air Guardian
Jetfire (Classics) - Autobot Air Guardian
Jetfire (Titanium) - Autobot
Jetfire (Classics Legends) - Autobot
Jetfire (Armada) - Autobot
Jetfire (Built To Rule) - Autobot
Jetfire (Powerlinx) - Autobot
Jetfire (Energon) - Autobot
Jetfire (Cybertron) - Autobot
Jetfire (Burger King) - Autobot
Jetfire (Legends of Cybertron) - Autobot
Jetfire (Target, Legends of Cybertron) - Autobot
Jetfire (Animated) - Autobot
Jetfire (Movie) - Autobot
Jetfire (Photon Missile) - Autobot
Jetfire (Legends) - Decepticon
Jetfire (Robot Replicas) - Autobot
Jetfire (Movie, Burger King) - Autobot
Jetfire (K-Mart, Legends) - Autobot
Jetstorm - Autobot Strategy Expert
Jetstorm - Decepticon Co-Ordinator
Jetstorm - Predacon Sky Patrol
Jetstorm - Vehicon Aerodrone General
Jetstorm (McDonald's) - Vehicon
Jetstorm (Ultra) - Vehicon Aerodrone General
Jetstorm - Mini-Con
Jetstorm (Air Assault) - Mini-Con
Jetstorm (Movie) - Decepticon
Jetstorm (Animated) - Autobot
Jetter (CD) - Micron
Jetter (X-Dimension) - Micron
Jetter (Change Micron) - Micron
Jetter (Micron Booster) - Micron
Jhiaxus - Decepticon Air Space Commander!
Jiiku (Overdrive Edition) - Micron
Jipe - Decepticon
Joe - Cybertron
Joe (Reissue) - Cybertron
Jolt - Decepticon Sneak Attack Specialist
Jolt - Mini-Con
Jolt (Powerlinx) - Mini-Con
Jolt (Built To Rule) - Mini-Con
Jolt (Universe Classics 2.0) - Mini-Con
Jolt (Cybertron) - Mini-Con
Jolt (Shadow Recon) - Mini-Con
Jolt (Movie) - Decepticon
Jolt - Autobot
Jolt (Electro Whip) - Autobot
Jolt (Robot Heroes) - Autobot
Joyride -Autobot Warrior
Junk (X-Dimension) - Micron
Junko - Cybertron