Lotek'k, more widely recognized as the Terror From Beyond, was a creature of immense size and enigma, characterized by its numerous tentacles.
The Gree once exiled Lotek'k to the far edges of the known galaxy. There it stayed until the era of the Cold War, at which point the Dread Masters turned rogue and initiated a widespread endeavor to instill fear across the galaxy. A key component of their scheme involved dispatching their operative, Kephess, to the Gree planet of Asation with the objective of seizing control of the Grand Hypergate. Using this, the Trandoshan started to introduce a plethora of unnamed horrors onto the world, with the purpose of terrorizing its inhabitants. This led the Gree Enclave to request aid from both the Sith Empire and the Galactic Republic.
Individuals from both sides were able to defeat Kephess, but not before the Hypergate was set in motion, at which point the Dread Master Calphayus conjured the Terror From Beyond from its remote confinement. The being only partially manifested from the tear in hyperspace, however it was forced back into the structure, where the individuals had to remove the creature from its position, resulting in its defeat and the removal of the threat to Asation.
The Terror from Beyond serves as the fifth and concluding battle within the operation Terror from Beyond, introduced in game update 1.4 of the game Star Wars: The Old Republic. Although the entity is only referred to as "The Terror from Beyond" in-game, the caption accompanying an in-game image on the official website reveals its name to be Lotek'k.