*Julie-Su (born day 277, 3221) is a character that appears in the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics. She is a mobian echidna and the girlfriend and distant relative of Knuckles the Echidna. Born the daughter of Luger and Mari-Su, Julie-Su was brought up among the Dark Legion. After her parents were murdered by her half-sister Lien-Da, she was placed in the foster care of Simon and Floren-Ca before she was taken away from them as well. Serving as a support troop in the Dark Legion for years, she eventually left it to join Knuckles and his group, the Chaotix. Since then she has fought along Knuckles' side and continues to function as a key member of the Chaotix.

Julie-Su is a rose pink-furred mobian echidna with peach skin on her muzzle, a black nose, lavender bangs, and deep violet eyes. She also has dreadlock-like spines around the sides, medium-length eyelashes on each side of her eyes, and a medium-sized, tri-crooked tail. As a former Dark Legionnaire, she bears cybernetics; her left foremost dreadlock is fully robotic, and the others sport various metallic plates, rings and wires. Her left arm is fully covered in metal rings while the upper part of her right arm is often depicted as having a similar ring or lacking it entirely. For attire, she wears a black-cropped tank top with teal padding on the left side, a golden belt and large, mechanical-looking teal boots. Her white mitt-like gloves with sock-like cuffs have the index finger on each separated.

Julie-Su is very similar to Knuckles in personality, acting tough most of the time while really being quite caring underneath. This similarity often caused them to butt heads, given that they were both stubborn and temperamental. She is an advocate of "girl power", serving as the only female member of the Chaotix until Saffron and later Rouge joined the group, though the latter did so only temporarily. Julie-Su is always willing to go into any danger, particularly when it involves saving Knuckles, whom she always attempts to aid despite his assurances that he doesn't need it.

Julie-Su, known to her friends as Julie, Jules, or 'Su, prefers to go into battle with her friends rather than wait on the sidelines. She is also even more of a tomboy than Sally, and refuses to be seen in a dress, though she does wear them on special occasions. Despite this, she and Sally do share a number of feelings, including a deep desire not to see the men they care about-namely Knuckles and Sonic-get hurt. Julie's concern for Knuckles is one of the few things that gets her truly emotional, particularly when she sees that he is troubled or she believes that he is in danger.

While she displays strong feelings whenever Knuckles is involved, at other times Julie-Su is more reserved, possibly as a result of her military training. Early on, she would show very little outward reaction to even the most surprising-and most likely upsetting-information. Being around the Chaotix has helped her to open up, to the point of showing concern for others, but she still remains rather disciplined. She does possess something of a temper, and is far from afraid to confront anyone who makes her angry.

Julie-Su was also very fond of her foster parents, Simon and Floren-Ca, and regarded them as real family. Despite all they've done to her, Julie also still cares deeply for her family related by blood. Like Knuckles, she is also concerned for the welfare of the remaining echidnas, though she doesn't appear to have the same interest in the history of their race.*