Twiga is a giraffe with tawny-brown fur and darker brown markings, including a large marking that somewhat resembles a heart on her face. She has a ridge of dark brown fur going up her neck and a forelock of brown fur atop her head. Twiga's eyes are green.
Little is revealed about Twiga's personality, as she currently has few speaking roles within the series. However, she is shown to respect the king and behave affectionately towards calves. She is noted to be friendly by Beshte, and is very polite. As a mother, she's alert towards danger.
Twiga also has a more negative side to her, and can be conniving and scheming towards those she does not like. She is also not above making fun of someone's appearance.
Twiga is one of the animals who sings the special song for the Kupatana Celebration. She is shown rehearsing the song with several other Pride Landers, including Basi and Mbuni. When the time of Kupatana arrives, Twiga sings the song as the Pride Landers assemble. After she and the other animals finish, Simba makes a small speech, and the baobab tree's flowers bloom. The celebration, however, is interrupted by a family of jackals. Twiga and the other giraffes are attacked by the jackal pups, but Beshte drives them away.
Upon spotting Twiga feeding from the trees, Ajabu dashes into hiding. Twiga greets Beshte cordially, and Beshte greets her in return. When Ajabu returns, Beshte remarks that there is no need to hide from Twiga, as she is friendly.
Twiga briefly appears during the song Life in the Pride Lands. She nuzzles a giraffe calf before walking away, followed by the calf and another two giraffes.
Twiga is walking along when Ono flies abruptly in front of her. The egret apologizes and advises her against continuing on the trail that she is on. She tells him that she must get to Big Springs, but Bunga informs her that a mudslide has blocked the path. Twiga realizes what he means and thanks him for the heads-up, a statement Bunga finds hilarious and Twiga and Ono do not. She departs without saying more than a quiet "um."
Twiga and the other giraffes' water hole has been blocked by boulders. The Lion Guard arrives to sort things out, and, noticing that Ono has lost his crest feathers, Shingo calls him an "egghead." Ono initially believes this to be a reference to his intelligence, but Twiga bends down and tells him that it's because his head looks like an egg, laughing with Shingo. Bunga defends his friend, insisting that his head looks more like a hippo's bottom, which only results in more laughter from the two giraffes. When the boulders are removed, she goes to the water hole and drinks with her herd.
Twiga is seen at The Watering Hole while trying to keep her daughter Juhudi out of trouble to no avail. When noticing how calm she is, Twiga questions Muhimu on where her son is, was and Muhimu replies that he is with Bunga at Hakuna Matata Falls, giving her and the other mothers an idea. Once they find Bunga and Hamu, Twiga asks the honey badger if he could watch their kids as well, to which Bunga agrees. With everything set and done Twiga promises him that they'll return before sundown.
She starts to finally unwind back at the watering hole, enjoying some delicious grass that Muhimu points out to her. When Muhimu decides that it might be time to check up on the kids, Twiga states that they're all having fun at the falls, so they don't need to. However, Reirei's Pack are lurking nearby, and overhear her words.
A bit later, she arrives to pick up her daughter. She asks Juhudi if she had a good time and the youngster replies that she did. Bunga then tells the parents that they fended off a group of jackals, which shocks Twiga and the other parents. When they discover that Bunga taught their children self defense, Twiga gazes over with surprise.
Twiga is seen heading towards Pride Rock for the Savannah Summit, but becomes visibly shocked along with everyone else when she discovers that Makuu was invited to the Summit too. As they journey to Mizimu Grove, Twiga begins talking to Vuruga Vuruga about being annoyed that Makuu got invited to summit. After all the things him and his crocodiles have done they both believe they shouldn't show Makuu any respect, and Twiga suggests that they talk in private.
She and Twiga then discuss Makuu in private a little later on. Mtoto overhears part of their conversation, and the Lion Guard approach them, believing them to be in danger. When they can't find any trace of Makuu, Kion asks Mtoto exactly what he heard, and he confesses that he actually heard Twiga speak about Makuu. Hearing this, the giraffe drops a branch that she was eating and turns to Vuruga Vuruga in disbelief, denying Mtoto's claim and asking if she was speaking about Makuu. When Vuruga Vuruga denies talking about him too, Twiga claims to be eating branches, and continues munching. After more suspicions are raised, Twiga finally gets the Guard to leave.
At sunset, Kion convincingly tells the other leaders that Makuu fell into a pit and completed his journey through the circle of life, leaving everyone in great shock. Twiga and Vuruga Vuruga step up and say they didn't want Makuu to perish, and that they just wanted to teach him a lesson. To everyone's surprise Makuu returns alive and well, though angry at the lack of trust they had for him. Twiga and Vuruga Vuruga watch on with shock and worry that Makuu will never accept them as comrades but their shock is turned into relief when the crocodile says that the trick they pulled was worthy of a crocodile.
Twiga is at the Watering Hole with her daughter and tells her to watch out for porcupine to which her calf avoids. When she sees Muhimu coming to the Watering Hole, she extends a small greeting and asks the zebra where her son Hamu is. And she responds that Hamu is being babysat by Bunga at Hakuna Matata Falls, having an idea she and the other mothers ask Bunga to watch over their kids to which the Honey Badger agrees.
A little while later Twiga and the rest of the mothers return to pick up their kids and after Bunga explains what happened Twiga and mothers are impressed that the honey badger taught the kids how to defend themselves. After the kids say goodbye to Bunga; Muhimu, Twiga and the rest of the mothers lead their children back home.