Sara appears to be something of a catgirl. She looks mostly human, but possesses a brown cat tail. Her long hair is a matching brown, with the ends colored orange. She has a mole on her right cheek next to her mouth. Sara's outfit consists of a yellow miniskirt with a matching crop top, both with pink ruffle trim. She also wears a pink cropped jacket, a black choker and belt, pink and white fold over boots, and red gloves with heart cutouts. Her hat, which is pink on the front and yellow at the back, is shaped like cat ears (though it is unknown whether this covers actual cat ears) and adorned with a large green jewel.
Later on, she began wearing a short strapless wedding dress with yellow trim and a giant bow on the back. Her gloves and boots are a matching white with yellow trim, and her choker is white and tied in the front. Her hat is also white, although the green gem remains, and is adorned with yellow, red, and purple flowers.
Sonic the Hedgehog: The Movie
Welcome to Robotropolis
One day, Sara and her father became captives by Dr. Robotnik in order for Robotnik to lure Sonic to South Island. After Sonic and Tails leave, Sara amuses herself by playing video games with Robotnik, but kept on losing (which at first resulted in her throwing a fit). After eventually getting tired of video games, Sara wishes to go for a drive and starts throwing a childish tantrum when Robotnik refuses. At that moment, Metal Robotnik crashed into the Presidential House, and Sara grows excited and demanded that Robotnik give her a ride in it, entering the control panel and playing around.
Sonic Vs. Metal Sonic!!
Later on, Sonic, Tails, and Knuckles go to the core of Robotropolis, where, after a small series of events, Metal Robotnik appears, eventually crumbling, revealing Dr. Robotnik and Sara in it. Knuckles falsely accuses Sara of being behind this scheme. In reply, she cries hysterically and reveals that "the robot and the machine going haywire were all part of Robotnik's evil scheme," which Robotnik does not deny.
After Metal Sonic appears, Sonic, Tails, and Knuckles go to the Ice Caps, where Sara is being held captive for a forced marriage at the North Pole (Dr. Robotnik's main goal in the movie is to destroy the world, leaving only him and Sara to marry and have children together, repopulating the world). Sara is extremely repulsed and angered by the idea of becoming Robotnik's bride, so she screams and proceeds to "scratch" him. Before this, however, Robotnik gifts her with a beautiful wedding dress.
During the fight between Metal Sonic and Sonic, Metal Sonic's head crashes through the bottom of Robotnik's ship, causing him to look up her dress, resulting in Sara repeatedly kicking his head, calling him a pervert. When Robotnik tries to grab Sonic, his ship tilts, causing Sara to fall, but is saved by Knuckles. She thanks him and kisses him on the cheek, causing him to blush and "freeze up". Throughout the rest of the movie, Sara stays with Knuckles and Tails as they watch Sonic and Metal Sonic fight. She also kisses Knuckles again to help encourage him to help her father.
As the daughter of the President, Sara is quite spoiled. She always expects to get her own way, throwing tantrums when she is beaten at a video game and even cajoling her kidnapper (Robotnik) to take her out for a drive when she is bored. She is also slightly selfish and lacking in empathy, claiming to Sonic that she does not care about Robotnik or even her own father's safety. Although she is selfish, she seems to be genuinely infatuated with Sonic and appears to care very much for him. For example, when she saw Metal Sonic strangling him, she started attacking him to save Sonic. She is not above using her charms to get her way, for example, kissing Knuckles to persuade him to help her father.
In other media
In the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics, Sara makes an appearance during the time Mobius Prime's history was altered by Chaos Knuckles. In this media, Sara appeared as a captive of Robotnik inside of a tube. Robotnik tells her to marry him and become his queen (wife), to which she denies. Sonic, Tails, and Knuckles soon after attempt to break through an armada of Metal Robotniks to free Sara. Immediately after, however, reality was changed again, leaving Sara to be erased from history.
- Sara is reminiscent to other animal/human hybrids in the Sonic the Hedgehog Story Comic.
- When Sara and Robotnik are playing the video game in Sonic the Hedgehog: The Movie, Robotnik's name in the game reads "Eggman" and Sara's name is spelled "Seira".