The show takes place ten years after the finale of Armada, opening in an age of peace on Cybertron and Earth which is destined not to last long. Energon pits the Autobots against an array of villains: the reborn Megatron , the barely functional Unicron, and the mysterious Alpha Q and his Terrorcon minions.

Isshin Chiba
Sandstorm / Snowstorm (voice)

Junichi Endo
Galvatron (voice)

Nobuo Tobita
Nightscream (voice)

Jin Yamanoi
Shockwave / Shockfleet (voice)

Katsuyuki Konishi
Grand Convoy (voice)

Mitsuo Iwata
Roadbuster (voice)

Kohsuke Toriumi
Hotshot (voice)

Nobutoshi Canna
Inferno (voice) / Laserwave (voice)

Koji Yusa
Ironhide / Irontread (voice)
Transformers: Robots In Disguise70%
Transformers: Armada73%
Transformers: Prime81%
Doraemon80%
Beast Machines: Transformers81%
Transformers: Rescue Bots72%
Transformers: EarthSpark71%
The Transformers78%
Monster Hunter Stories: Ride On79%
Voltron: Legendary Defender72%
Generator Rex85%
UFO Robot Grendizer76%
Voltron: Defender of the Universe78%
Aquarion65%
Ben 1059%
Big Hero 6 The Series75%
Inspector Gadget59%
Transformers: Animated80%
My Life as a Teenage Robot73%
Zoids: Chaotic Century85%