Warning: SPOILERS ahead for Doctor Strange

With Marvel Cinematic Universe to the brink of perception, and then shatter it entirely. From this point on, fans can throw out everything they thought they knew about the MCU.

The Sorcerer Supreme brings with him the Dormammu and his Dark Dimension.

Whether you're looking for a refresher course in Dormammu and the Dark Dimension before seeing Doctor Strange, or are trying to figure out just what exactly they are after seeing the movie, we're here to help.

Doctor Strange Needs a Proper Nemesis

Dormammu and the Dark Dimension Explained

After Steve Ditko's character took off in the pages of Baron Karl Mordo was a fantastic mortal foil, but in all his dealings with the good doctor, Mordo never really amounted to more than a pain in the butt.

Come 1964, Marvel gave Mordo a little backup. Starting in Strange Tales #126, Lee and Ditko introduced the dread lord Ancient One by weakening him (or her). But now the fiery fiend had a face, as well as an agenda of conquest.

Throughout the years, the smoky tyrant and Stephen Strange have grappled back and forth, with the dark ruler even being banned from Earth by Strange at one point. Dormammu has also teamed up with the MCU in future) among others.

Over time, Dormammu’s goal has remained roughly the same: to become one of the most powerful beings in the universe, and on a slightly smaller scale, add our world to his growing collection of pocket realms and parallel universes. To be honest, when you live in a place called the Dark Dimension, a little beachfront realty probably sounds heavenly.

The Dark Dimension Gets Some Legs

Dormammu in Marvel Comics

Although originally just another Hades-like realm, over the years various Marvel creators fleshed out the “Dark Dimension” and it’s place in the Marvel Multiverse. Originally, the pocket universe was ruled by Olnar and his fellow sorcerers known as the Mhuruuks. However, after being banished from his home Faltine realm (at least as of 1993’s “Heart of Darkness” story arc), Dormammu tricked Olnar into subjugating other pocket dimension, including the domain of the Mindless Ones. Overrunning the dark domain, the nigh-indestructible zombie-like horde killed most of its prior residents, including Olnar.

Since assuming power, Dormy (as no-one affectionately calls him) has used the realm as his base of operations. From there, he schemes with other evil colleagues (like Satannish), messes with Celestials, and transports the Mindless Ones from behind their wall – one he magically created to fence them out of his dimension – and into other worlds to enact his nefarious deeds. Of course, the dread lord isn’t the only Faltine in the Dark Dimension, even though he’s usually the one with a flaming head.

The hellish place is also home to Dormammu’s sister Umar. After helping her brother usurp power, Umar eventually bred with the son of Olnar, Orini. Their daughter would become the Doctor Strange. From time to time, both Umar and Clea have ruled the Dark Dimension, but for the most part, the Master of the Mindless Ones claims ultimate dominion and wears the “Flames of Regency,” although he hasn't rocked his fiery 'do in the movie thus far.

The Dark Lord Meets the Marvel Cinematic Universe

Doctor Strange Benedict Cumberbatch artwork

While Dormammu and Dark Dimension weren’t really alluded to during early interviews and promotional material, although Doctor Strange will itself.

The Sorcerer Supreme may have managed to dam the tides of darkness, this time – by eliciting a sworn oath from Dormammu – we all know how reliable black-magical multiverse overlords are when it comes to promises. With such a major tease during the film, the dread lord will undoubtedly be back (hopefully portrayed in mo-cap once again by Baron Mordo or through the sticky wicket of the Infinity Gauntlet, what with its peculiar way of turning the normally solid walls of reality into a kaleidoscope.

At this point, though, the arch-fiend and his realm are relatively unexplored. A brief glimpses into his terrifying world hasn't revealed a sibling or a daughter, much less any major plans beyond swiping the good old Earth. Fans will likely have to wait until Doctor Strange 2 to find out how close the Sorcerer Supreme's main baddie brushes up against his source material.

Next: Scott Derrickson Discusses Doctor Strange’s Comic Book Influences

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