Krang (Out of the Shadows)

"I know what you're thinking right now! Of all the ways you'd like to kill me, but that would require you outthinking me and no one, nothing is smarter than the Krang!"

- Krang "Teams are for the weak! Family is for the scared! The earth is my toy! And I do not like to share! Now for a new game! Look out earth, it's playtime!"

- Krang betraying the Shredder Krang is the true main antagonist of the 2016 live-action sci-fi comedy film Teenage Mutant Ninja Turtles: Out Of The Shadows. He is an alien warlord from another dimension seeking to conquer ours. He had sent three components of a machine to our dimension that, when united, would open up a portal to his dimension. Krang is voiced by Brad Garrett, who also voiced Lobo and Riff Raff in the Underdog movie.

Unlike Shredder, who is a strict no-nonsensical killing psychopath, Krang is a sarcastic childish jokester who often makes punchlines, making him similar to Michelangelo.

History
When Shredder got hijacked while attempting to escape by teleporting, he was transported to another dimension where he met Krang. Krang provided him with a mutagenic compound in exchange for his promise to find three components of a machine Krang sent to Earth years ago that open a portal to his dimension when united.

After Baxter Stockman completes the portal device, Krang emerges with his war machine, the Technodrome. Shredder then demands that he earned his control over the Earth now, but Krang refuses and claims Earth all for himself as his own toy to play with. Enraged for his betrayal, Shredder brandishes his retractable blades, ready to attack Krang. But before he could do this, Krang freezes him and locks him away with his collection of other defeated foes.

The Turtles then confront Krang aboard the still-assembling Technodrome. Although Krang is able to overpower all 4 turtles easily, the Turtles manage to defeat him when Donatello short circuts Krang's robotic body. Then, they locate the beacon around which the Technodrome is assembling and hurl it back through the portal, taking Krang and the rest of the Technodrome with it while April, Casey, and Vern then shut the portal down. As he disappears, Krang swears he will return for revenge.

Trivia

 * Unlike most iterations, this version of Krang has a considerably deeper voice.
 * According to promotional material, this iteration was going to be named as Kraang, with two A's. Of course, it could've been a spelling mistake.
 * Due to this, many fans thought that he was going to be The Kraang from the Teenage Mutant Ninja Turtles (2012) TV Show.
 * Krang was originally going to be voiced by Fred Armisen.