|“||Ed! I'm telling mom!||„|
|~ Sarah threaten Ed to tell their mother|
|“||Don't move! I'll save you!||„|
|~ Sarah, High Heeled Ed, second season|
Sarah is the hot-headed, spoiled younger sister of Ed, who refuses to accept the love and affection he offers her. Although, she once did show concern for Ed in "Honor Thy Ed" when she thought he was in danger, until she realized he was faking it. She despises the Eds, especially Eddy and relishes the chance to physically harm them. She has a crush on Edd, which is shown occasionally, but even her love for him doesn't always spare him from her wrath. Sarah writes regularly in a diary which she keeps hidden underneath her mattress. In one episode, after the Eds accidentally destroy her bedroom, Eddy finds the diary, gets it open and reads the entry she had written about Double D (much to his embarrassment): "Double D is so cute! Last night I dreamt that he gave me a horsey!". Naturally, this violation of her privacy makes Sarah lay a serious hurting on the Eds. She is best friends with accident-prone Jimmy, who is jealous of her crush on Edd. She is Jimmy's fiercly protective bodyguard, defending him and rushing to his aid the second he yells for help. The two are often seen around the Cul-de-Sac playing with their toys, most notably Sarah's Polly Poo Poo and Jimmy's Mr. Yum Yum.
Sarah has great strength like her older brother, only to a lesser degree. She often utilizes it to protect Jimmy from possible harm, or to beat up the Eds (or anyone else that's bothering her). Despite this, she still shows fear of the Kanker Sisters.
Sarah's manipulating abilities can trick anyone into giving her what she wants, or doing what she says. As already stated, she is a common spoiled brat who refuses to take "no" for an answer; she'll either manipulate or whine until her desires are met. She's often determined to get what she wants, even if it means spoiling the fun of others. Usually, her wishes are granted right away, before the whining starts. She can be exceptionally cruel when provoked - she locked Ed out of the house when the 8 Hour Monster Movie Marathon was on, showing she obviously doesn't care about the feelings of others, least of all Ed's love for monster movies and comics.
Sarah is something of a tomboy, judging by how much stronger she is than the other boys (and the willingness to use her strength), but is also very girly, showing interest in dolls, tea parties, and ballet. She also acts as a second mother to Jimmy, caring for him when he is injured, such as in "Cry Ed". In turn, Jimmy sometimes acts as a second father for Sarah, caring for her when she was sick in "Is There an Ed in the House?". The two share a very close, yet non-romantic relationship.