Regulon Four is a planet in the Generation One continuity family.

Regulon Four is a planet in the Regulon star system. It is home to fearsome creatures known as Regulon metalmongers.

Note: The original spelling from the The Transformers cartoon appears to be "Regulan", but the 2007 text-story The Dark Heart of Sandokan established "Regulon" as the correct spelling. Since the previous spelling never appeared in print, the 2007 spelling is considered the official one.


Kup and his platoon were once stranded on Regulon Four and beset by metalmongers. The Rebirth, Part 2

Later, the Autobots Chromia and Flareup defeated the Insecticon Buzzclaw there. The Dark Heart of Sandokan

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