Catarine Towani, a Human woman, shared two offspring with her spouse, Jeremitt: Cindel and Mace. The Towani clan found themselves stranded in 3 ABY on the Endor's Forest Moon when their star cruiser suffered a crash landing. While they were stuck, Catarine and Jeremitt briefly left their kids near the spaceship, telling them to remain put. Upon their return, they discovered Cindel and Mace were missing. Catarine and Jeremitt initiated a search, but during their efforts, a Gorax seized them, dragging them to its den.
Later, Cindel and Mace allied with the moon's indigenous Ewoks to locate their parents and venture into the Gorax's den, aiming to bring them back. The group, consisting of the children and Ewoks, arrived and reunited Catarine and Jeremitt by creating a distraction for the Gorax. Following a brief fight with the creature, which resulted in a single Ewok casualty, they successfully rescued the captured pair and went back to the Ewoks' Bright Tree Village. Subsequently, in that same year, Sanyassan Marauders stormed the village, leading to the demise of Catarine, Mace, and Jeremitt.

Catarine Towani, a Human female, was wedded to fellow Human Jeremitt Towani. Together, they had two children as a family: Mace, born around 11 BBY, and Cindel, who arrived nine years afterward. In 3 ABY, the Towanis were on their way home aboard their family's star cruiser, with Catarine and Jeremitt at the controls, but they ended up crashing on the Outer Rim's Forest Moon of Endor. Being stuck in the woods, Catarine and Jeremitt instructed their children to remain inside the vessel while they unsuccessfully tried to find civilization, but Mace, known for ignoring instructions, left the ship with his sister. Catarine and Jeremitt came back later, horrified to discover their children had disappeared. They started looking for them using glowrods, calling out their names and splitting up.
The pair met back at the star cruiser, where Catarine asked her husband whether he had located Cindel and Mace, which he hadn't. She reminded Jeremitt that every day since the crash, they had both told the children to stay near the ship. She then expressed regret about their decision to leave them alone to find a transmitter, given that they were just young children who wouldn't know what to do. Jeremitt rechecked the cruiser, while Catarine called out their names again. She also shouted that she and their father weren't angry at them for leaving. It was at that moment that Jeremitt found Cindel's jacket on the ground. Catarine said aloud that she hoped her daughter was still wearing her life monitor.
As their search continued, Jeremitt embraced his wife, assuring her that their children would be found. However, their shouts for Mace and Cindel attracted the attention of a Gorax beast who, after chasing them with a large axe, captured the Humans and took them to his fortress. Mace and Cindel were later found by a tribe of native Ewoks, who used magic to determine where Catarine and Jeremitt had been taken, as the children yearned to be reunited with their parents. They assisted them in assembling a caravan to find the Gorax's lair, despite the fact that no Ewok had ever returned from the fortress before.

The Ewoks got to the lair and made their way to the Gorax, where they discovered the parents locked up in a cage hanging from the ceiling. Jeremitt held Catarine in his arms as the Gorax approached them, but one of the Ewoks created a distraction that caused the Gorax to chase after him and the others. Once the Gorax was—albeit temporarily—out of sight, Mace and the remaining Ewoks came up with a plan to get the Humans down from the cage, which involved using an axe to launch Mace upward. Jeremitt then noticed that Mace had arrived, which he excitedly told Catarine. After Mace was launched upward, he reunited with his parents and dropped a long rope, which the Ewok Chukha-Trok then climbed.
Jeremitt was confused by the Ewok, but his son assured him that he was a friend. With Chukha-Trok and Jeremitt holding the rope, Mace went back down, intending to bring his parents next, with his mother urging him to hurry. However, the Gorax then returned, but his attention was drawn to a runaway Ewok, so Jeremitt and Catarine were able to safely descend. It took a bit longer for Chukha-Trok, whose rope broke, causing him to fall to the ground. With everyone down, the party rushed out, but Chukha-Trok stayed behind to fight, stabbing the Gorax's foot. The party was stopped when they reached a cliff, with Catarine noticing that Mace was missing. The two parents had a realization, both worrying for their son.
They rushed back, calling his name, to find him trying to fight the Gorax by using Izrina the Wistie. She successfully aggravated the Gorax, driving him away, but in his anger, he triggered a rockfall onto Chukha-Trok, killing him. Mace said goodbye and thanked him, but the battle was not won yet, for the Gorax had returned. Jeremitt and an Ewok assembled a rope to trip up the Gorax, which worked, but he didn't fully fall into the gorge. The Ewok Kaink tried to use her magic to push him over the edge, but was unsuccessful. As the Gorax tried to get up again, Catarine shot his shoulder with a blaster, giving him the necessary push over the edge.

Once the Gorax was gone, Catarine hugged Jeremitt. Mace then ran over to his parents, hugging them as well, with Catarine telling him that she had thought he was lost forever. Cindel and her Ewok friend Wicket Wystri Warrick then arrived; Cindel waved to her mother, with both of them excited to see each other. However, the Gorax returned once again, having climbed out of the gorge. The party of Ewoks and Humans screamed in fear, but Mace threw Chukha-Trok's axe at his neck, sending him over the cliff once more, this time for good.
Mace used the rope to swing to the other side of the ravine, with the Ewoks and his parents following suit. There, Catarine reunited with Cindel, who confessed that she thought her parents had been killed. Izrina then returned as well, leading the caravan back to the Ewok home of Bright Tree Village. A party was held to celebrate the return of Catarine and Jeremitt, where there was Ewok music and dancing. Wicket's mother, Shodu, handed an item to Catarine, and Wicket also gifted her a flower. She thanked both of them for the gifts.

Later that year, the Ewok village was raided by a group of Sanyassan Marauders. Wicket and Cindel were away during the initial attack, so they managed to survive, but Catarine was present, and her health quickly declined, so that Cindel's life monitor alerted her to her mother's dire situation. The young Human ran over to her, finding Mace fighting off the Sanyassans next to their mother's lifeless body. Mace shouted at his sister to get away and find their father, dragging Catarine into a nearby hut and continuing to fire his blaster at the Marauders. However, Jeremitt was also under attack; he briefly escaped, but Catarine and Mace did not survive. Jeremitt consoled Cindel for their deaths, instructing his young daughter to save herself, leave him, and join the Ewoks. He soon died as well.
A few days later, a witch named Charal successfully lured Cindel into a trap by singing her a song that her mother used to sing to her. A year later, in 4 ABY, another Human female, the Rebel Leia Organa, traveled to Endor and encountered Wicket. The Ewok was reminded of Catarine when he saw Organa.
Catarine Towani was deeply distressed by the possibility of her children being lost, and regretted the decision to leave them alone after their crash on Endor. She was relieved when Mace rescued her and Jeremitt from the Gorax, confirming that Mace and Cindel were alive, but she was still anxious about escaping, biting her nails in apprehension. She cautioned her son as he climbed down the rope, worried about him. She had brown hair and fair skin.
Towani wore white clothing with a white jacket. She used a blaster to shoot the Gorax.
Catarine Towani made her first appearance in the 1984 television film Caravan of Courage: An Ewok Adventure, where she was played by Fionnula Flanagan. Caravan of Courage was filmed in Marin County, California between June and August of that year. The actress who played Catarine's corpse in the 1985 film Ewoks: The Battle for Endor was not credited. Her last name was confirmed to be "Towani," matching her family name, in the 1998 reference book Star Wars Encyclopedia.
In the 2022 video game LEGO Star Wars: The Skywalker Saga, one of the side missions on Endor involves fixing a painting of the Towani family, including Catarine, that has been broken into pieces, although their name is not mentioned in the game.