Other forces

Unicron

A living mechanical planetoid that consumes worlds. In the 1986 animated film he was voiced by Orson Welles — the actor's final role.

Where he comes from

A primal force of destruction, Primus's eternal opposite. In some versions a god of chaos, in others a creation that escaped control.

Story

Unicron is a living mechanical planet that devours entire worlds. He has no motives in a human sense: he embodies destruction and hunger itself.

In the 1986 film he was voiced by Orson Welles — the actor's final role. In Transformers: Prime Unicron sleeps at Earth's core, and in Rise of the Beasts he seeks the Transwarp Key to reach new worlds.

Classifier: traits & abilities

Faction
His own
Role
Devourer of worlds
Alt-modes
Ringed planet
Weapons
Abyss-like jaws, energy beams, armies of servants
Abilities
Consuming planets, rebuilding other Transformers (Galvatron), mind influence
Strengths
Cosmic scale, near-immortality
Weaknesses
The Matrix of Leadership; reliance on servants in early stages
Personality
Merciless, primal, all-consuming
Key relationships
Primus, Galvatron, the Thirteen Primes
First appearance
1986
Voice (1986)
Orson Welles

Filmography

YearTitle
1986The Transformers: The Movie
2002–2006Unicron Trilogy
2010–2013Transformers: Prime
2023Rise of the Beasts

Main screen appearances; not an exhaustive list.

Fan prequel: «The First Hunger»

An original story by this site. Not part of the official canon.

In the beginning there was no hunger. There was only space and two sparks gazing at each other across the void.

One spark created: gathering dust into worlds, light into stars. The other watched and did not understand why. Every new world seemed like noise disturbing the silence that had come first.

Then the second spark touched another's world for the first time — and it vanished. Silence returned, for a moment. That moment was enough for hunger to be born. Ever since, Unicron has searched for that first silence in every world he devours, and found it nowhere.