Goigoi is a jackal with brown fur in a darker shade than his mate's. His back and tail tip are black, with four pale spots near his shoulder. He has a bushy tail that is very skinny at the base. The fur along his back is long and scruffy, and his cheeks are distinctively rounder than Reirei's. His muzzle is long, thicker towards his nose, with a few teeth protruding from his lower lip. Goigoi's ears are are both clipped, one of them having a small hole near the top, and his broad nose is dark brown. He has bushy black eyebrows, and several strands of fur stick up atop his head and hang down on his lower jaw. Three deep brown speckles are present on each side of his nose.
Goigoi is shown to be greedy for food and fairly dimwitted. He has the same devious nature as Reirei, but he is a follower rather than a leader. He is very submissive to her, never questioning her actions. He also loves to sleep, and is not pleased when he is disturbed from his rest. He is afraid of the Lion Guard and will willingly pass on the blame to Reirei rather than getting in trouble with them. He isn't the master of deception that Reirei is, and sometimes slips up when attempting to trick others.
Goigoi's son, Dogo, manages to fool the Lion Guard into inviting him into the Pride Lands. Goigoi's mate Reirei witnesses Dogo accomplish this, and eagerly turns to tell him. To her annoyance, Goigoi is sleeping, and Reirei resorts to hitting him with her paw, waking him abruptly. He indignantly tells her that he was sleeping, but Reirei dismisses this and explains to him that Dogo has tricked the Guard into inviting him into the Pride Lands, and begins to add that when one jackal is invited, they all are. Goigoi finishes her sentence for her, and goes to fetch his sons.
Later, Goigoi and Reirei tail the Guard as they take Dogo to a hillside in the Pride Lands. Once the Guard has left, they reveal themselves to Dogo. Goigoi observes that "this place sure beats the Outlands" and gives a short laugh, licking his lips, causing Reirei to look at him disdainfully before continuing to speak to Dogo. At one point, Goigoi asks Reirei when "this Kupatana thing" will begin, and she replies that it will be a while before Kupatana starts. She adds that in the meantime, they should make themselves at home.
The jackal pups do as Reirei said, choosing to sleep in the aardvarks' dens, much to the irritation of their former inhabitants. When Kion, Fuli, and Ono arrive to sort things out, Reirei and Goigoi approach them, and Reirei introduces themselves as Dogo's parents. Meanwhile, Goigoi is searching inside an aardvark den. He
discovers a fruit and proceeds to eat it, angering the aardvarks even further. Kion asks which one of the jackal pups is Dogo, and Dogo approaches him cheerfully. Kion recalls that Dogo said he had no family, but Dogo protests, telling Kion that what he said specifically was that he was alone. Reirei adds that at the time, he had been. She assures Kion that it was all a misunderstanding, and he allows them to stay.
Later, as the jackal family walks through the Pride Lands, Reirei decides that they should help themselves to more of the Pride Landers' "generosity". Dogo asks her if that will make Kion and the Guard mad, but Reirei explains that due to it being the day of Kupatana, they can do whatever they want. Goigoi confirms this mockingly, and Reirei then teaches Dogo and her family how to get their way. This results in a number of a number of Pride Landers angry at the jackals for stealing from them, but when the Guard arrives, Dogo and Reirei once again insist that it was a misunderstanding, and they are permitted to stay in the Pride Lands. Reirei even talks Kion into considering allowing the jackals at Kupatana.
Goigoi is seen watching the Pride Landers before Kupatana begins. Reirei tells Goigoi that she's moved by all of the choices in prey, wondering where they'll begin. Goigoi simply decides to "dig in". When the Kupatana begins, the jackals attack, with Reirei in the lead and Dogo at her side. The Lion Guard moves into action to stop the predators. Goigoi chases a baboon around the elephants, but is foiled by Fuli. He is no match for the cheetah's speed, and ends up crashing into a tree as he tries to escape her. Kion tells the jackals that they are going back to the Outlands. Reirei tries to talk her way out of it once more, but Simba roars angrily at her, and the jackal family flees back to the Outlands.
Goigoi, snoring while he sleeps inside of a den, mutters that he loves her in his sleep after she calls his name. She prods him, and he briefly wakes up and asks if he was snoring before resuming his slumber. However, after as Reirei mentions aardwolves to eat, he wakes up with a final snort, declaring that she had him at aardwolf with a wave of his paw. She announces that it smells like a whole pack moved in next door, and Goigoi asks when the hyraxes moved out. Reirei responds that they did not, and, remembering, he remarks that they were delicious.
Reirei tells him that it is time to say hello to their new neighbors now that he is up, and, licking his lips, Goigoi responds, "Whatever you say, dear." They enter the aardwolf den, and Goigoi jovially greets the aardwolves inside. The aardwolves comment that they thought the jackals were the Lion Guard, and Goigoi glances around asking where the Lion Guard is. Jumping against Reirei, he declares that she made him do it. She kicks him away, and he hits the wall of the den with a cry before slumping to the ground. He returns to Reirei's side as she assures the aardwolves that the Guard will not find any trace of them. She then adds, "Maybe a little hide." and Goigoi continues with, "Maybe a little hair."
Reirei, telling the aardwolves that they will be friends, comments that they know what friends do. Goigoi interrupts saying that friends have each other for dinner. Reirei kicks him away and quickly smooths this over, and they sing We'll Make You a Meal together while dancing during some parts. As the song draws to a close, Reirei climbs onto Goigoi's back. Goigoi then jumps down and wraps his forepaws around the two of the aardwolves' backs.
Mjomba, another aardwolf, enters the den, and Goigoi proclaims that it is a private party. Reirei denies this, stating that the more, the merrier. To Goigoi's surprise, the two ardwolves he was sitting with move away. While they talk to Mjomba, Reirei and Goigoi move to the exit of the den. Upon being ordered to by his mate, Goigoi pushes a boulder across of it, blocking the way out.
They two jackals advance on the aardwolves, and Goigoi asks if they should wait for the kids. Reirei responds that the can have the leftovers, and they pounce. The aardwolves move out of the way, and they begin to chase them and snap at them. However, the Lion Guard enters the den, stopping the attack, and Bunga holds Goigoi by the tail as he tries to run. Once he is released, he flies out of the den and tumbles into Reirei. They bounce into their den, and Bunga shuts them in. Goigoi then falls asleep.
Goigoi, Reirei and some other adult jackals find a missing calf who has strayed in the Outlands. When the Lion Guard try to intervene, Goigoi warns them away. Kion, Beshte and Ono catapult some nearby fruits across to them. Goigoi and the other jackals make a hasty retreat to the Outlands to avoid being hit with the unripened fruits.
When Reirei gets into trouble, Goigoi turns to the Lion Guard for help. Since she usually gives the pack the orders, he asks them to help. After they agree, Goigoi leads them to the last place he saw her. When she is rescued, although Goigoi is relieved to see her, Reirei is angry with him for asking their lifelong enemies for help, and chases him away while Goigoi assures her that he did it for her.