Kim is muscular and taller than the average student at school; he has olive skin and dark brown eyes. He styles his hair, which is black with the ends dyed gold, into a sharp quiff.
He wears a red, short-sleeved hoodie jacket with a big front pocket and hoodie and some white outlines at certain places. On the front of the jacket, there is a white logo, which is a downward-pointing pentagon outline outside of a smaller, filled-in pentagon with a red corner and a star. He pairs his top with navy blue track sweatpants, and red, white, and black sports shoes.
Dark Cupid wears a black and red suit, along with large black wings attached to his back, each feather-like end of each tipped with two red stripes. On the sides of his neck, there are black lighting bolts. He wears a black head cover, the areas covering the top of his hair and around his eyes being red.
The top of his suit is red, with a large white broken heart on his chest. To the waist down, the suit is black. From the elbow down to the hand is black, and from the knee down is red with a few strands of cloth sticking out above the back of each ankle. On his back is a black, red, and white striped quiver, which carries red arrows. On the quiver strap across his chest, the brooch, which is now red and black, is attached to it. His archery bow is based on a breaking heart. The handle is white with red heart halves at the ends, and on each side of the bow, there are two large gray and white spikes.
Kim wears an outfit similar to his regular one except his hoodie jacket is yellow and red. The logo on his chest is red, which is a downward-pointing pentagon outline outside of a smaller filled-in pentagon with a white edge and a red star.
Kim's comic book appearance is the same as his appearance in the television series.
Kim's lacrosse uniform consists of a red short sleeve shirt with dark gray stripes and black shorts with a red stripe. His shirt has a dark gray 8 on the front and back. He wears dark gray pads on his elbows and legs, and on his hands he wears red padded lacrosse gloves. Finally, he has on a pair of white lacrosse cleats.