Silver is a very light gray (almost white) anthropomorphic hedgehog with white fur on his chest surrounding his neck with gold eyes and tan skin. He has two large spines at the back of his head, while at the front of his forehead there are five distinct spines flared up and back, the two final ones covering up most of his ears.

For attire, he wears white gloves with cyan circles with lines sticking out of the bottom leading to his golden bracelets accented in cyan. The tops of his boots are of a similar fashion with a red gem set in gold. The rest of his boots are navy blue, white, and cyan.

Silver is best described as having "a strong sense of justice" and it is this personality trait that motivates him to head back into the past to correct the future. He believes in standing up for those who cannot stand up for themselves. This led him to accept Blaze when everybody else was teasing her for her pyrokinetic abilities. When he pursues an enemy, he does so with a relentless determination. He makes alliances and rivalries very easily and takes people's word without question; this makes him easily tricked by others.

Silver wears his heart on his sleeve. He feels anger and joy intensely and loudly, but his sadness is silent and hardly, if ever, marked by tears. He lets his rage control him and cheerfully remarks on the things that make him happy, but hardly says a word in his sadness, though it is visible to everyone. However, though he may feel sad, he never gives in to despair, always looking for a solution the right way. His determination and little regard for pain can make him a very frightening opponent.

Silver is very courageous and brave, willing to fearlessly sacrifice himself for another in a heartbeat. Utterly unflinching in the face of danger, he is courageous almost to the point of foolishness and is the focus on snuffing out evil with little regard for his own safety.

Despite Silver's naivete and general lack of critical thinking, he is not outright slow-witted. Even Eggman Nega called him perceptive, and Silver was the first to see through his otherwise perfect disguise. With little information to draw upon, he lets his intuition guide him, but as a relatively isolated person, he has little understanding of interpersonal relations or the subtle tools of manipulators.

(Vocal Direction: Pete Capella)