He is voiced by Colin Murdock (both forms) in the English version. Yumi Touma provides the voice for Spinel in his false form while Katsuyuki Konishi (who also voices Kenta Usui) voices his true self in the Japanese Version. His false form is voiced by Philece Sampler in the 2nd Movie and Apphia Yu (false form) in Clear Card Arc.
In his borrowed form, he looks like a small black cat with butterfly-like blue wings. Once transformed, though, he resembles a black panther with pointy ears, enlarged wings, and a blue gem in the middle of his forehead. The gem is also placed into the silver butterfly armor he wears on his chest. Being a cat, his pupils are slits.
Spinel is one of Eriol Hiiragizawa's guardians, designed to be the counterpart of Cerberus but they are completely different. While Cerberus tends to be active, energetic and spends the days playing video games, Spinel is calm and refined, spending much of his time reading while hating loud noises. Although they tend to argue a lot, their bond is that of friends.
Spinel's "weakness", given to him by an amused Eriol, is anything sugary or sweet-filled. Eating any amount of them will cause him to become "drunk," which in Spinel's case is a state of loud, frenzied gluttony while acting like a spoiled child, a state that is worse than that of the much older Cerberus, who regularly has sugar and is used to it.
In this state, Spinel can also become easily emotional and he has the ability to fire energy balls from his mouth which on one occasion forced Kero to temporarily abandon his usual fondness for sweets as he attempted to stop Spinel from causing havoc. Kero even had to change into his true form to deflect the damage from one of Spinel's energy balls. Because of this vulnerability, Spinel expresses a distaste for sweets.
- His Second English Voice Actress, Philece Sampler is best known for voicing Mimi Tachikawa from Digimon Adventure series, Cody Hida from Digimon Adventure 02.
- His Third English Voice Actress, Apphia Yu also voices Shigure Sohma as Child from Remake/Reboot of Fruits Basket.
Cardcaptor Sakura: Clear Card