The name Megatron can refer to several different characters:
- 1984 — Megatron, leader and sometimes founder of the Decepticons from Generation One. For Toys of this character, see Megatron (G1) toys
- 1996 — Megatron, a Predacon criminal and architect of the theft of the Golden Disk turned ruler of Cybertron from Beast Wars. Later became the leader of the Vehicons and was split into Savage/Noble and the Grand Mal in Beast Machines. Yeesss.
- 2002 — Megatron, yet another Decepticon commander, this one a pivotal figure in the Unicron Trilogy.
- 2004 — Megatron, the first Decepticon leader having departed Cybertron long ago with Rodimus and eventually seeking a peaceful existence.
- 2007 — Megatron, the former Lord High Protector of Cybertron who gets a jonesing for the All Spark and sparks a motion picture.
- 2008 — Megatron, the leader of the Decepticons on Transtech Cybertron.
Megatron is not to be confused with:
- Straxus, a Decepticon commander who temporarily inhabited Megatron's body (or a version of it, it's complicated) from the Generation One comics.
- The Megatron statue, a massive stone statue of the Unicron Trilogy character.
- Megaplex, a duplicate of Megatron designed to fool his enemies from the Generation One continuity.
- Megabolt, Decepticon emissary, whose alternate form mimics the Big Floating Head headquarters of Beast Wars Megatron in the Beast Machines cartoon, from Robots in Disguise/Universe.
- Megastar, Robots in Disguise Megatron's starship/base.
- Mega-Octane, leader of the Decepticon Commandos from Robots in Disguise, who looks exactly like the Combaticon leader Onslaught.
Many versions of Megatron eventually upgrade their bodies and change their name to Galvatron.
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