Lila Sawyer, a nice girl from Hey Arnold! She came from a farming community she calls "Pleasentville" and lives with her father. Nothing is ever mentioned about her mother. She is Arnold's crush. However, she only prefers Arnold as a friend. She had a crush on Arnold's cousin Arnie. She knows that Helga loves Arnold and offered to help Helga become more like her in one episode. She was Olga Pataki's lil sis in the "Big Sis" episode and they seemed to get along with each other really well. She was voiced by Ashley Buccille.
Lila is, as Helga puts it, "Little Miss Perfect". She has a tendency to add the words "ever so" or "oh so" to just about every sentence she speaks, and she's very polite, sweet, and kind. This leads her to bond quite easily with Olga, as the two have similar interests. But in truth, Lila has a darker side to her. As she sings about in "Eugene, Eugene!", she is actually very sad on the inside and purposefully puts up her perfect persona to hide it. This essentially makes her the opposite of Helga, who puts up a mean persona to hide her kind self.
Lila is always seen wearing a green dress, that matched with green shoes. Her hair has two pigtails with hairbows at each end. In her first few appearances, her hair was red, but in later episodes, her hair is darker. As of Hey Arnold! The Jungle Movie, she retains her appearance from the series, with the exceptions that her sleeves are puffier and her shoes are changed to brown cowgirl boots. She is likely of Irish descent.
Lila makes her first appearance in the episode "Ms. Perfect". She is a new student at P.S. 118. She's new to "the big city," having moved with her father from Pleasantville, a farming community. She's as smart as Phoebe, as stylish as Rhonda, and the most popular girl among the boys. At first, the other girls are jealous, but when they learn about her humble, disadvantaged home life, they begin to sympathize with her.
Helga's dislike for Lila later resurfaces in the episode "Arnold & Lila", even though it is the result of Helga's own actions. Lila decides that she "like-likes" Arnold after finding "Arnold Loves Lila" written on an alley wall while walking home from school. Arnold initially rejects Lila's advances, but eventually develops a crush on her. But by that point, Lila has already gotten over her romantic feelings for Arnold, and says that while she's flattered that he has a crush on her, she only likes him as a friend.
In "School Play", she is assigned the penultimate understudy, making her the last person Helga has to get through in order to play Juliet opposite Arnold as Romeo. However, all of Helga's attempts to get Lila to quit fail. Lila suddenly begins to hint she knows why Helga wants to play Juliet, and says she would be willing to quit if Helga admitted she liked Arnold. Helga stubbornly admits to Lila that she does have a crush on Arnold, and Lila willingly gives the role to Helga. Some have speculated that Helga's crush on Arnold could be a reason why later on, Lila continuously turns down Arnold's advances, and states she only likes him as a friend.
In "Timberly Loves Arnold", Timberly asks Arnold, "Did anyone ever really hurt your feelings?," and Arnold sadly looks at Lila. After Arnold gets turned down again by Lila at the end of the episode, this time for something Arnold did that even he finds indefensible, he finally decides to try to let go of his romantic feelings for her.