The Creators (Transformers)

"You think you were born? No. You were built and your Creators want you back."

- Lockdown about the Creators. "Your world is dying. Optimus Prime, do you seek redemption?"

- Quintessa corrupting (or reprogramming) Optimus Prime.

The Creators are the major recurring antagonists of the Transformers film series. They are a group of extraterrestrials who are responsible for the creation of the Transformers (both Autobots and Decepticons). They first appeared as unseen antagonists of the 2014 science fiction film Transformers: Age of Extinction, and a Creator known as Quintessa appeared in the 2017 sequel Transformers: The Last Knight as one of the main antagonists.

Age of Extinction
The bounty hunter Lockdown reveals to Optimus Prime that all Transformers were not born, but they were built by a race of organic alien beings he refers to as the "Creators". Optimus is confused over this, since both Autobots and Decepticons always believed that they were created by the AllSpark cube having given life into them.

Due to the destruction that Lockdown caused while nearly bringing the entire human race to extinction using the Seed, Optimus knew it was too dangerous for him to remain on Earth because he was the sole reason why the Creators sent Lockdown. After killing Lockdown and Harold Attinger, Optimus flew off into space to search for his Creators and force them to refrain from attacking Earth.

The Last Knight
A Creator named Quintessa arrives to Earth and teams up with Megatron to revitalize Cybertron by destroying Unicron, the original form of Earth and Cybertron's ancient enemy, who is starting to reawaken as Cybertron nears. Quintessa sends Optimus (now Nemesis Prime) to retrieve Merlin's staff granted by the Knights, so that she and Megatron may use its energy to destroy Unicron and save their planet. Optimus is brought back to his senses by Bumblebee and the Autobots team up with the Knights to stop the evil pair.

As Quintessa is charging her energies up to finish the job, Cade, Vivian, the Autobots and Knights infiltrate Cybertron's core and Optimus battles Megatron, kicking him out and sending him flying back to Earth. He attacks Quintessa and she prepares to destroy him for betraying her until Optimus tells her to say hello to his friend Bumblebee, who catches her by surprise and obliterates her Cybertronian body entirely, allowing Vivian to use the staff and stop the destruction.

Quintessa regenerates in a human form or disguise, travels to the desert where a Unicron spike has emerged and tells a group of workers not to touch Unicron's spike as he dislikes it, and says that she can tell them how to kill him.

Engineering
The Creators are very good at engineering, as they created the planet of Cybertron and all of its inhabitants, who were not only capable of emotions, but were able to engineer their own war craft and personalities of their own. This means that the technology of the Creators is far beyond human and Cybertronian technology. It would also be logical to assume that they created all of this with the Allspark, further hinting of their great technology. They also engineered the Seed, a bomb that could turn anything into Transformium, the mineral that all Transformers are made of.

Powers and Abilities
It is unknown if the Creators possess any power or are just greatly technologically advanced. It is clear that their bounty hunter, Lockdown, fears them or is extremely loyal to them, but if Lockdown does fear them, it could be because they might possess supernatural powers, but this is unknown. In two Trailers, it is shown that Quintessa can shoot electric beams from her hands, which she uses to torture a chained Optimus Prime. It also appeared that Quintessa has a great physical strength, enough to hurt a Transformer such as Optimus as seen when she slapped the latter in the face. However, it can be assumed that her durability is probably not as great as that of a Transformer's, since once Bumblebee got close enough, he destroyed her body rather easily.

Trivia

 * It is unknown who the Creators are, but many fans currently believed that they are the Quintessons (or based from them), an ancient alien race of technorganic squids mentioned in the original Transformers, who created the Transformers for selfish reasons.
 * Many fans were even confused if it was the Allspark or the Creators who gave life to the Transformers. However, it is highly possible that the Creators themselves are the same beings who constructed the Allspark, or they discovered and used it to give life to the Transformers.
 * The design of the Creators' ships resembling snail shells may be a nod to the Inquisitor Quintessons in the G1 Transformers cartoon.
 * They Quintessons and one of the Creators, Quintessa, had both of their heads resemble snail shells.
 * Quintessa's tentacle appendages look similar to the Quintessons' tentacle appendages from the first generation.
 * The words "Quintessa" and "Quintessons" are very similar, making it possible that Quintessa was named after her species, which could very well be the Quintessons.
 * Since the Creators are responsible for the creation of the Transformers (including Megatron, The Fallen, Sentinel Prime and Lockdown) in the first place, they serve as the main antagonists of the entire Transformers film franchise, though they will be outranked by Unicron in the upcoming sequel.
 * It is very possible that the Creators are a race of techno-organic creatures, as in Transformers: Age of Extinction it's shown that their arms are made out of flesh, but Quintessa's face seems robotic, as revealed in a trailer for Transformers: The Last Knight.
 * This could also mean that the Creators are actually a group of different alien species working together, but this has also been unconfirmed.