During his adventures, Sonic has encountered many people and throughout it all, he has received many friends and foes alike. Sonic is well-known with his brotherly relationship with Tails, his friendly rivalry with Knuckles and his fierce arch-rivalry with Shadow. Sonic's arch-enemy is Dr. Eggman, but Sonic has come across even greater enemies throughout his adventures and escapades, But he has come across good friends to help inspire in the future.
Sonic and Dr. Eggman have spent years as archenemies, due to the latter's constant attempts at planetary domination, which Sonic always thwarts, causing him to become a thorn in Eggman's side. The two have battled for the fate of the world under various circumstances, from Eggman's imprisonment of various types of wildlife to the planet's surface being shattered by the Chaos Energy Cannon from Sonic Unleashed. In spite of Eggman's horrible deeds, Sonic is content with just stopping the doctor and is never out to put him out of commission for good on purpose. Because of Eggman's tendency to survive their encounters and refusal to give up, however, the doctor always returns with a new scheme, prompting Sonic to stop him again. As such, Sonic remains forever locked in a conflict with Eggman where it is nearly impossible for both individuals to defeat the other once and for all, making their battle a never-ending one.
Miles "Tails" Prower:
He is Sonic’s oldest and closest friend, to the point that the two can be considered surrogate brothers. Tails is likewise considered Sonic's personal wingman and partner in their various adventures. Also, whenever Tails worries for Sonic's well-being, Sonic is quick to give his buddy emotional support and assures him that he will be fine, even offering Tails to join him "just like old times."
Sonic cares very much for Tails' well-being. He will not hesitate to threaten those who endanger him, and will always make his safety his top priority, regardless of the matters on hand. Tails as in particular proven himself Sonic's most reliable ally, always providing him with invaluable help, knowledge, and machines. In turn, Sonic is impressed with Tails' work and considers his technical skills unparalleled, though this faith makes him leave all the tech work to him.
Amy Rose is Sonic's longtime admirer and one of his closest friends, and the only one who’s known to harbor deeper feelings toward him, feelings that she never tries to hide around him, which often makes him uneasy. While Sonic cares very much for Amy however, he does not returns her romantic feelings. Nonetheless, he has a good relationship with her, and with most of his friends, she can be subject to his jokes and teasing. Overall, Sonic cares about as Amy a good friend and worthy comrade whom he can rely on, and he appreciates her efforts to help him when she is not flirting with him. Also, whenever Amy is in trouble, Sonic will always be there to help her out should the need arise, though he tends to overlook her when she is caught in the middle of his showdowns with the villains.
Knuckles the Echidna:
Knuckles the Echidna is both a close friend and rival to Sonic, with the two of them being no stranger to butting heads over a disagreement at worst, or partaking in banter with each other at best. Despite this, the two put a lot of trust in one another's abilities and work near perfectly to get the job done. While Knuckles at times rebuts his help and claims he could do better, Sonic just rolls with it and is merely glad to help him. For better or worse, Sonic will also be there to give Knuckles needed, if not harsh, consoling whenever he is in doubt.
Shadow the Hedgehog:
Shadow the Hedgehog is Sonic's arch-rival. They look almost identical (to the extent that many initially got them confused), and they can match each other in speed, agility and abilities,[ including Chaos Control. Sonic has a joyful, free-spirited attitude that looks for fun adventures, while Shadow is a brooding loner with a merciless and excessively violent edge. Out of all his rivals, Shadow is the one whom Sonic struggles most with.
Despite their differences, Sonic and Shadow share a mutual respect for each other, though this is rarely apparent because they always argue and fight. Sonic himself has acknowledged Shadow's capabilities, even admitting that Shadow is only one who would have a chance against him in a race, and after Shadow sacrificed himself to save the world in Sonic Adventure 2, he recognized him as a brave and heroic hedgehog. Regardless of their disagreements, they are willing to put their differences aside for the greater good, and together they are an unbeatable team. Overall, there is always extreme tension between Sonic and Shadow, but they have matured over time, with Shadow having more faith in Sonic's capabilities and Sonic becoming more tolerant of Shadow's violent tendencies.
Cream the Rabbit:
Cream the Rabbit is basically like a younger sister to Sonic. Cream similarly looks up to Sonic like an older brother. Cream also takes him as her savior and respects him a lot. He often calls him by the name of "Mr. Sonic" due to her education in manners..
Silver the Hedgehog:
Sonic is good friends and allies with Silver the Hedgehog. While Silver's awkwardness at times clashes with Sonic's more level-headed and cool-headed demeanor (which prompts Sonic to tease Silver), they are nonetheless faithful allies who put a lot of trust in one another. They also work well together in combat. Even though he and Sonic are now allies, Silver still tends to get irritated by the former's cheeky attitude.
Blaze the Cat:
Blaze the Cat is one of Sonic's friends and most valuable allies. He first met Blaze in Sonic Rush where he initially suspected she was involved with Dr. Eggman Nega's scheme. Sonic and Blaze have steadily become better friends and allies. They have a developed a custom where they shake hands as they depart, signifying their growing friendship and respect, and the promise to meet once more. Sonic and Blaze are alike in many ways, having similar skills and duties, yet very different backstories and contrasting personalities: Sonic being inwardly free and adventurous, yet outwardly level-headed and cool, whereas Blaze is outwardly stoic and blunt, yet inwardly highly emotional.
Sonic and Blaze share a great deal of mutual respect and trust. Like Blaze respects Sonic and his skills, Sonic acknowledged Blaze's, especially since she is one of the few who has tied with him in combat.
Chip is a dear and good friend to Sonic. When Chip first saw Sonic, he was afraid of his Werehog form, but he soon realized he was a good guy. When Sonic then told Chip that he would help him recover his memories, Chip quickly took a liking to Sonic and thanked him wholeheartedly. In addition, Chip subconsciously felt kindness in Sonic and wanted him to help him.
Sally the Chimpmunk:
Sally and Sonic are friends and dependable allies. The two of them like to poke fun at each other in a purely platonic way, with Sally often commenting on Sonic's overbearing ego and tendency not to stick to her plans. Because Sally goes to great length to formulate a plan, she can get quite frustrated when Sonic starts doing his own thing in the middle of a mission. Nevertheless, they retain a dynamic friendship, although they do not share a romantic bond.
Rotor the Walrus:
.Rotor is another intelligent friend of Sonic's, not to mention a brawny one, at that. He and Rotor have worked together in the past under many conditions. While the two each have good hearts, their attitudes towards mission vary considerably, to the point of them arguing, as seen throughout the time spent by them and Amy Eusbes Shrine, which leads Rotor's pragmatic, no-nonsense attitude to clash with Sonic's nonchalant, selfless nature. However, they are always back by each other's side in a pinch.
Antoine the Coyote:
Antoine is another one of Sonic's friends (and teammates), and Sonic was said to have helped him gain the courage he needed to protect the kingdom along with Bunnie and the others.
Bunnie the Rabbot:
Bunnie is also a friend of Sonic's. She was depressed when she first became a cyborg. However, Sonic and his fellow Freedom Fighters helped her through those times as well as show her that she was still herself, both promoting and inspiring her to fight alongside the rest of her friends and use her cybernetics to her advantage
Nicole the Lynx:
Nicole is Sonic's helpful and trustworthy computer friend. She aids alongside the gang in her Lynx form and her body gives her all the power she needs to aid the gang.
Mighty the Armadillo:
Mighty the Armadillo is amongst Sonic's oldest of friends, and the two are close allies despite having not met in some time. According to Mighty, it was the hedgehog who had in the past inspired him to get his act together. Although Mighty still finds Sonic's ego to be overbearingly large, the two are nonetheless respectable and dependable allies, who both make a formidable team.
Tangle the Lemur:
Sonic and Tangle the Lemur have been described as "kindred spirits" due to having similar traits to each other, particularly their skill and enjoyment in battling Badniks, as well as the confidence they share in doing so.
Jet the Hawk:
Sonic has been rivals with Jet the Hawk since they first met, and their dynamic relationship is based on their competitive nature and distinct respect for one another. In their first meeting, Sonic lost to Jet in an Extreme Gear chase, but rather than being upset, Sonic eagerly recognized him as a worthy new rival.
Sonic's rivalry with Jet was rather one-sided, and Jet would often anger Sonic with his constant mockery of him. Nevertheless, Sonic recognized Jet's skills as an Extreme Gear rider and kept a professional, yet competitive, attitude around him. Eventually, Sonic settled his own dispute with Jet after he beat him in a race. Soon after, they would establish a more friendly relationship based on mutual respect, and promised each other to compete again later, though they still remain firm rivals. Despite how many times they face each other, their rivalry has seemingly no end in sight, although Sonic always looks forward to his next rematch with Jet.Affiliation:
Team Heroes (or Team Sonic):
- Sonic (Himself Leader)
Big and Froggy
Cream and Cheese
- Knuckles (Commander)
- Sonic (himself)
- Amy (Second in Command)
- E-123 Omega
- Resistance Fighters (Mostly our Oc's and Avaters from Sonic Forces