I

Iacon,

Headquarters of the Autobots, before they left Cybertron.

Iguanus,

Predacon. Comes from the Beast Wars. Transforms into an iguana.

Iguanus,

Decepticon. Transforms into a vehicle. He is one of the Pretenders.

Illuminators,

Group of four Transformers; two Autobots (Electro and Volt) and two Decepticons (Fireball and Hotrod). They are all equiped with weapons that can give light.

Inferno,

Autobot Actionmaster. His weapon transforms into a jet-pack.

Inferno,

Autobot. Transforms into a fire engine. He is one of the Autobot Vehicles.

Inferno,

Autobot from the second generation. Second release of Inferno. He is one of the Heroics.

Inferno,

Predacon. Comes from the Beast Wars. Transforms into a fire ant.

Injector,

Predacon. Comes from the Beast Wars. He is a Fuzor, transforms into a creature part lionfish, part hornet.

Insecticon,

Predacon. Comes from the Beast Wars. Transforms into a beetle

Insecticons,

Group of three Decepticons. They transform into insects. Their names are:
Bombshell
Kickback
Shrapnel

Ironfist,

Autobot. Transforms into a car. He is one of the Lightformers.

Ironhide,

Autobot. Transforms into a delivery van. He is one of the Autobot Vehicles.

Ironhide,

Autobot from the second generation. Transforms into a car. He is one of the Gobots.

Ironhide,

Autobot from the second generation. Transforms into an armoured vehicle. He is one of the Powermasters.

Ironhide,

Maximal. He is part of the Magnaboss 3-pack together with Prowl and Silverbolt. He transforms into a elephant

Ironworks,

Autobot Micromaster. Transforms into a truck. The base of Ironworks transforms into a construction site. He is one of the Micromaster Battlestations.