As you may recall, in Toy Story 2 there is a scene in which Zurg tells Buzz he is his father, in a nod to Luke Skywalker and Darth Vader from Star Wars. But in Lightyear, it is revealed that Zurg is an older, alternate version of Buzz.
Zurg's character appears to draw from Darth Vader, the villain in the original Star Wars trilogy, with a similar voice, appearance, and set of mannerisms.
In the ending, when Jessie saves all her friends, Buzz is shown to be proud of the cowgirl's bravery. Their relationship isn't shown as much in Toy Story 4, but they are still a couple. When the toys are in Bonnie's closet, Buzz is seen kneeling in front of Jessie, who is having a panic attack in the dark.
It is later revealed that Zurg is actually the 50-year future self of Buzz Lightyear, wishing to time travel back to the past to prevent his crew from ever landing on the planet.
Beneath his mechanized suit, Emperor Zurg turns out to be none other than Buzz from another timeline, an older, embittered version (voiced by James Brolin) from a future that's figured out how to use Buzz's fuel to travel through time.
However, Zurg seems to have survived the fall (though he presumably hit his head so hard that he lost his memory of being Buzz's enemy) as he, with one of his horns slightly bent backwards, as well as appearing to have a tooth missing, is seen playing catch and spending "quality time" with New Buzz when Andy's Buzz and ...
Jessie. Buzz doing a Spanish romantic dance with Jessie. Buzz's relationship with Jessie is only hinted at the end of Toy Story 2 when Buzz became instantly lovestruck with her looks and her adventurous personality. Jessie immediately returns his compliments by describing him as the sweetest space toy she has ever met.
Additionally, MacLane revealed that the old look for Zurg simply wouldn't allow for what needed to be done with the character in Lightyear's story. Fortunately, the design team was still able to incorporate a few of the iconic elements from his first appearance: There are things that we needed to do narratively.
At almost 10 in tall, Zurg is the formidable nemesis of Buzz Lightyear and his ragtag team, so he's poised for good versus evil action play inspired by the movie.
He and Ultra Buzz have a brief argument over who is the real Buzz (despite the fact that the two are both the same), and Ultra Buzz tries to tell Woody and the toys that Andy's Buzz was an imposter who was trained by Zurg to imitate his actions after Woody asks which one is the real Buzz.
Woody. Woody and Jessie share a sibling-like relationship. Since meeting each other in Al's penthouse, the two share a close bond. The two are shown to have pretty heated arguments from time to time, but they deeply care for each other nonetheless.
Woody and Bo together forever. Woody is Bo Peep's love interest in Toy Story, Toy Story 2, and Toy Story 4. In the first film, she offers to get someone other than Woody to watch her sheep, a sign that she plans to spend some intimate time with Woody.
In the post credit scene, Zurg's robot suit is shown drifting through space, undamaged, but seemingly inactive. However, the eyes on Zurg's robot suit suddenly power on, indicating that he survived the explosion after the fight with Buzz.
There was a hidden reason why they keep referring Buzz Lightyear and their leader Zurg as B-Zurg ever time they speak, is because they can't pronounce Buzz's name correctly which foreshadows that Zurg is Buzz Lightyear when his first name has been scramble backwards after trying to say the B word first, while his last ...
An alternate universe version of Emperor Zurg appeared in the Buzz Lightyear of Star Command cartoon series, where beneath the mask is an evil Buzz Lightyear.
Although Toy Story 2 established that Evil Emperor Zurg was Buzz Lightyear's father, Lightyear retconned the relationship so that Zurg now has an entirely different backstory.
Trivia. Lightyear's incarnation of Zurg is also an evil Buzz from an alternate future that has assumed Zurg's identity and traveled back in time to prevent the crash that marooned Buzz's colony on Tikana Prime even at the cost of damaging the space time continuum.
