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Megatron is the main antagonist of the Transformers franchise and the Arch-Enemy of Optimus Prime. Here are the incarnations of the ruthless Decepticon leader. Some of them become Galvatron, however some versions portray Galvatron and Megatron as separate entities.
- Megatron (Beast Wars) - The descendant of the G1 Megatron.
- Megatron (IDW Comics) - The IDW version of Megatron.
- Megatron (RID) (also known as Galvatron after being upgraded)
- Megatron (Transformers: Animated)
- Megatron (Transformers: Cyberverse)
- Megatron (Transformers Film Series)
- Megatron (Transformers: Prime)
- Megatron (Unicron Trilogy)￼￼ (renamed Galvatron in each series after being upgraded)
- Megatron (WFC Trilogy)
- Galvatron - The updated/future version of Megatron, who is sometimes portrayed as a separate entity.
- Galvatron (BWII)￼￼ - Like the Beast Era Megatron, a separate character from G1 Galvatron.
- Galvatron (IDW Comics)￼￼ - A separate character from IDW Megatron.
- Galvatron (WFC Trilogy)
- Megatronus (Aligned)
- Megatronus (Transformers)
- Megatronus Prime (Titans Return)