Lin

Rin is a worker at the bathhouse who is assigned to be Chihiro's caretaker. Although indifferent to Chihiro's situation at first, she eventually warms up to her.

History
Lin first appears in the boiler room, bringing Kamaji his dinner and feeding the Susuwatari. When she sees Chihiro, she's shocked, but Kamaji claims that Chihiro is his granddaughter and convinces Lin to take her to Yubaba by offering her a roasted newt. Lin takes Chihiro through the bathhouse to an elevator but is detained.

Lin appears next after Haku introduces Chihiro to the workers at the bathhouse. Haku names Chihiro Lin's assistant, despite Lin's protests. In front of the other workers, particularly the frogs, Lin is cold to Chihiro. However, she takes a warmer tone towards her as soon as they are alone, saying that she was worried about her. The next morning as she and the others are preparing for work, Lin questions Chihiro's whereabouts and again expresses her worry over her.

Later, after scolding Chihiro on her work ("That the best you can do?"), Lin is informed that she and Chihiro are in charge of cleaning the room reserved for the filthiest guests. She complains that it is "Frog work" but has no choice but to obey orders. As she and Chihiro head down the corridor, she is teased by a fellow worker about having big tub duty whom she replies to lay off. Then she is seen along with Chihiro clearing the room of grass and scrubbing the inside of the tub. When told customers have arrived, Lin deemed the job as 'harassment' and tells Chihiro to retrieve an herbal soak tag from the foreman.

After she sending the tag to Kamaji, she instructed Chihiro to yank the rope to start the water and casually remarked that Chihiro was such a klutz when she slipped. Gleefully stating that the murky water would cover up the sludge, Lin went off to get their breakfast. She returns with two bowls of rice only to see Chihiro leading the assumed 'Stink God' to the big tub, and their food literally disintegrates from the stench emitted from the creature.

Lin later arrives after the water restarted, and it's discovered that she asked Kamaji to send all the water available. She aids Chihiro in tying the rope and pulling the debris out of the 'Stink God', and when celebration commenced, she swiped food to share with Chihiro. The next morning, she is one of many who try to please No-Face for the gold he is able to produce.

Character Trivia
According to "The Art of Spirited Away" book, Lin is the transformed spirit of a weasel.

In the English dub of the movie, she is referred to as “Lin.”