Snoke

Supreme Leader Snoke is the master of Kylo Ren and an antagonist in Star Wars: The Force Awakens and Star Wars: The Last Jedi.

How The Force Awakens Should Have Ended
In this episode, Snoke (depicted as Gollum from the The Lord of the Rings trilogy) orders Kylo Ren to bring him "the precious." Ren affirms the order, but wonders if Snoke is talking about Rey as Snoke exclaims, "PRECIOUS!!!"

Alternate Force Awakens HISHE
Snoke (still depicted as Gollum) is joking with Kylo Ren as General Hux arrives with a urgent message. Snoke answers to Hux angrily, but Hux, scared to warn them that the Resistance has made a Right Back Atcha to counter Starkiller Base, flees the scene.

How The Last Jedi Should Have Ended
In this HISHE, Snoke finally gains a proper design similar to his film design.

Snoke first appears sending Rey a Force vision of Kylo Ren on the toilet. As she reacts to Ren on the toilet with disgust, Snoke chuckles to himself.

Later, when Rey confronts Snoke himself, he tells her his backstory. It is soon revealed that he is really Darth Plagueis.

Star Wars - Best Picture Summary - Oscars 2018
Snoke's severed torso appears in the skit, where after Rey comments on Call Me By Your Name, he appears and reveals that he tried awakening desires between her and Kylo Ren. Rey is disgusted, as she could be related to Kylo, but Snoke denies that.

Trivia

 * Snoke appearing as Gollum in "How The Force Awakens Should Have Ended" is a nod to Andy Serkis, who portrayed both characters.