Sonic Team

All of these characters know eachother except you.

Sonic the Hedgehog- Born on Christmas Island, Sonic abandoned his home at an early age to pursue a life of adventures. He has spent most of his life traveling around the world and beyond, usually accompanied by his best friend, Tails. In his journeys, he has defended his world and others from various threats, especially his arch-nemesis, Doctor Eggman.

During his many adventures, Sonic has traveled from the ends of the world to the far reaches of space and time, earning many titles, allies, and foes. Known for his attitude and somewhat short temper, yet strong sense of justice and love for freedom, Sonic's victories have made him a celebrated hero. Sonic is described as "like the wind",[71] a free-spirited drifter with an insatiable appetite for adventure.[72][73][10] He values freedom above all else and lives by his own rules rather than societal standards.[74][75][2][71] Sonic's primary passion is speed, and he likes anything that is fast.[3]

Sonic loves traveling around the world,[21] interacting with different cultures present on the planet, and tasting regional dishes—particularly chili dogs—considering himself a connoisseur.[10] He never stays in one place for long and always seeks his next challenge, viewing life as a never-ending series of adventures.[2] Sonic hates being constrained,[76] which tends to make him very uneasy and restless. However, he has shown the ability to remain calm even after six months of imprisonment onboard the Death Egg. Despite his love for the outdoors, he enjoys quieter activities, such as reading on rainy days.[11]

Sonic has a calm and carefree demeanor[71][74][2] but can be impatient, impulsive and short-tempered.[77][71][78] He can be reckless and quick to act before thinking, acting before thinking and ignoring others' warnings.[77] Nevertheless, he is honest,[2] fearless,[79] and always keeps his promises.[2]

Miles 'Tails' Prower- Tails is loyal, kind and curious. In his early years, he was frequently bullied for his twin tails. His life took a positive turn when he met Sonic, forming an unbreakable bond with him. This relationship has made him more confident, growing into a more outgoing, brave, independent individual who strives to become a hero in his own right.

Knuckles the Echidna- Knuckles is independent, wild,[27][28][29] hot-blooded,[30] tough,[27][28][29] and a loner by nature. If Sonic embodies the wind that keeps blowing forward, then the echidna personifies the immobility of a mountain.[1][24] Due to having lived in seclusion for most of his life, Knuckles is a rather antisocial and reclusive individual. As such, he cares very little about what others think, which makes him bluntly honest, straightforward, and somewhat egotistical.[27]

Amy- Not much is known about Amy's early life, except that she had always loved fortunes and other mystical things, and that she practiced some of it using her own tarot cards. Using her cards, In Sonic the Hedgehog CD, Amy predicted that she would have a "destined" encounter with Sonic the Hedgehog on the small satellite known as Little Planet.[6] Amy traveled to the Little Planet and saw Sonic there, fulfilling her prediction. She instantly fell in love with him and hugged him, but Sonic didn't respond to her advances.[22] At Collision Chaos however, Amy was kidnapped by Metal Sonic, Dr. Eggman's latest creation. Fortunately, after Amy got tied up in Stardust Speedway, she was saved by Sonic after he defeated Metal Sonic. After Sonic then defeated Eggman and the doctor's base began to fall apart around them, Amy was safely carried back to Mobius by Sonic, where she only caught a glimpse of him running away and setting Little Planet free.

Sonic, Tails, Knuckles, and Amy are all part of a band called Crush 40. Sonic is the 1st singer, Amy is the second singer, Tails is the keyboardist, and Knuckles is the guitarist. Their most successful songs are You Can Do Anything and Believe In Yourself.