Who is Ratar-O?
In the universe of ThunderCats, not all villains are the same. Mumm-Ra is the great immortal sorcerer, but when it comes to brute military leadership and raw war power, there is one name that makes even the most fearless. Plun-Darr Mutants: Ratar-O. Supreme Commander of the Mutants and absolute lord of the Ratstar, Ratar-O represents the most direct, calculated and militarily devastating threat the ThunderCats have faced on the battlefields of Third Earth.
Unlike Slithe, Monkian, Jackalman and Vultureman - that gang of incompetent mutants who fail episode after episode - Ratar-O arrives with real authority, an organized army and a warship that makes ThunderTank look like a toy. His appearance in the series changes the rules of the game: it is no longer the chaos of four mutants fighting each other, but the relentless discipline of a war commander who only knows one order: destroy the ThunderCats.
History and Origin
Ratar-O comes from the planet Plun-Darr, home of the Mutants, the same place where the ThunderCats suffered their first major defeat before fleeing to Third Earth. On Plun-Darr, Ratar-O was the supreme commander of the mutant forces, a figure of absolute authority to whom all Mutants, including the reptilian Slithe, were held accountable.
His first and most memorable appearance in the original animated series comes in the epic double episode "Feliner" (season 1, 1985), one of the most remembered chapters of the entire franchise. In it, Ratar-O arrives on Third Earth aboard his imposing warship, the ratstar, with a clear mission: take control of the disorganized Mutants and put an end to the ThunderCats.
His strategy in this episode reveals all his cunning: he captures Snarfer —Snarf's nephew— on the Planet of the Snarfs and deliberately uses him as bait, allowing him to escape to ask the ThunderCats for help. It's a perfectly calculated trap to lure the feline heroes into their combat zone, where the Ratstar has an absolute advantage. This level of planning radically separates him from the bumbling Mutants of the usual quartet.
The Ratstar: The Ultimate Warship
He ratstar It is the symbol of Ratar-O's power and one of the most fearsome ships that have crossed the skies of Third Earth. It is not a simple transport: it is a flying fortress equipped with devastating weapons systems, including the Void Charges (Vacuum Charges), projectiles capable of seriously damaging even the Thunder Tank, the ThunderCats armored vehicle.
In the episode Feliner, the Ratstar leaves the ThunderTank badly damaged with a single shot of its Void Charges, demonstrating in a matter of seconds why Ratar-O is considered a threat of an entirely different level. The ThunderCats urgently need to complete the Feliner—their own interstellar travel ship—to cope with this new scale of space combat.
Powers, Abilities and Weapons
| Skill/Weapon | Description |
|---|---|
| Rat's Eyes | Pair of twin daggers that are the source of his power, analogous to the Eye of Thundera in the Sword of Omens. They are your most precious personal weapon. |
| ratstar | Personal warship equipped with Void Charges, devastating missiles capable of damaging the ThunderTank with a single shot. Base of operations and flying fort. |
| personal flight | Ratar-O can fly using thrusters built into his boots, giving him great mobility in close combat. |
| Tactical leadership | Superior military strategist, capable of planning complex ambushes using bait and deception. Transform disorganized Mutants into a disciplined fighting force. |
| Superior physical strength | As an elite mutant commander, he possesses physical strength that far surpasses ordinary mutants, making him a dangerous rival in direct combat. |
Ratar-O vs. The Quartet Mutants
One of the most fascinating dynamics of Ratar-O's emergence is the radical change it produces in the mutant hierarchy. Slithe, Monkian, Jackalman and Vultureman They go from being the main villains to frightened subordinates. Slithe, who on Plun-Darr worked under Ratar-O in the mutant military kitchens, knows exactly his place when the supreme commander shows up.
This power dynamic adds a new dimension to the Mutants: they are not simply evil by nature, but rather pieces of a much larger military machine whose real head was always Ratar-O. The usual quartet is the shock vanguard that keeps the ThunderCats busy; Ratar-O is the strategic mind behind the entire operation on Plun-Darr.
7 Curiosities about Ratar-O
- Only two-part episode of season 1: The episode "Feliner" where Ratar-O debuts is the only episode of the first season of ThunderCats that was divided into two parts, a testament to the narrative impact that the arrival of the mutant commander had.
- Slithe's Royal Hierarchical Superior: On Plun-Darr, Slithe was not the boss, but served under Ratar-O. His position on Third Earth as leader of the quartet is a result of the absence of the true commander, not of his own merit.
- The Rat's Eyes are a mirror of the Eye of Thundera: The writers designed Ratar-O's twin daggers as a direct response to the Sword of Omen, establishing a visual and narrative symmetry between ThunderCat power and mutant power.
- LJN 1985 Action Figure: Ratar-O had his own action figure in the LJN line of ThunderCats (1985), with a rear lever that moved his right arm to attack, included silver daggers, and a positionable tail. It is one of the most sought after figures by collectors.
- Elite pilot: Unlike the Earth-based Mutants, Ratar-O masters space combat, piloting the Ratstar with tactical mastery and using Void Charges with surgical precision, something no member of the quartet could replicate.
- Legacy in ThunderCats 2011: In the reimagined 2011 series, Ratar-O appears as the dictator of the Rats and descendant of Ratilla, who once wielded the Sword of Plun-Darr—the weapon that rivals the Sword of Omen—adding historical depth to the character's lineage.
- He returned in ThunderCats Roar (2019): The 2019 animated reboot also brought back Ratar-O as leader of the Mutants on Plun-Darr, cementing his position as the true head of the mutant faction throughout all versions of the ThunderCats universe.
In the 2026 Movie
With the thundercats movie confirmed by Amazon Studios and Warner Bros., directed by Brad Peyton, the fan community is hotly debating what role different villains could play in the new production. Ratar-O is one of the most requested characters: his combination of military power, excessive ambition and complex relationship with the rest of the Mutants makes him a perfect antagonist for the cinematic narrative.
Ratar-O is proof that in the ThunderCats universe, true danger doesn't always come from the same place: while Mumm-Ra Lurking from the shadows of ancient magic, Ratar-O arrives from space with live fire and ruthless strategy. Who was your favorite ThunderCats villain? Did you prefer the mystical threat of Mumm-Ra or the raw military might of Ratar-O? Leave us your opinion in the comments!
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⚡ FREQUENTLY ASKED QUESTIONS ⚡
Who is Ratar-O?
In the universe of ThunderCats , not all villains are the same. Mumm-Ra is the great immortal sorcerer, but when it comes to brute military leadership and raw war power, there is one name that makes even the most ...
What should you know about: History and Origin?
Ratar-O comes from the planet Plun-Darr , home of the Mutants, the same place where the ThunderCats suffered their first major defeat before fleeing to Third Earth. On Plun-Darr, Ratar-O was the supreme commander of the ...
What should you know about: The Ratstar: The Ultimate Warship?
He ratstar It is the symbol of Ratar-O's power and one of the most fearsome ships that have crossed the skies of Third Earth. It is not a simple transport: it is a flying fortress equipped with devastating weapons ...
What should you know about: Powers, Abilities and Weapons?
One of the most fascinating dynamics of Ratar-O's emergence is the radical change it produces in the mutant hierarchy. Slithe, Monkian, Jackalman and Vultureman They go from being the main villains to frightened ...
What should you know about: Ratar-O vs. The Quartet Mutants?
One of the most fascinating dynamics of Ratar-O's emergence is the radical change it produces in the mutant hierarchy. Slithe, Monkian, Jackalman and Vultureman They go from being the main villains to frightened ...
