For any Sonic the Hedgehog player, you know that there is an extensive list of Sonic characters that have been created in the last 20 years. Well, sit back and relax, because you are going to get your memory refreshed with all of Sonic's friends and foes. First, a reintroduction from the Sonic characters that started it all, Sonic himself. Sonic is the hero of Sega's hit series, and was their original response to the renown of Mario from Nintendo. He is the planet's fastest hedgehog, both here on earth and on his home planet. His incredible speed cannot be beat, and full throttle for Sonic is always faster than the speed of sound. However, when he gets a hold of the Chaos Emeralds, he becomes Super Sonic and can travel at the speed of light. Shortly after Sonic made headlines, he gained a friend and more notoriety. That friend is known as Miles Prower, or to his friends and fans, just 'Tails'.
Tails is a fox that has two tails, and is the sidekick of Sonic. He can use his two tails to launch himself into the air, similar to a helicopter. When Tails first came on the scene, he was kidnapped by the evil Robotnik and held for ransom. Since then, the high IQ and mechanically inclined Tails can read binary code to translate this information to Sonic.
Next of Sonic characters, Amy Rose is a pink hedgehog who dreams that she is Sonic's girlfriend. When she was introduced, Metal Sonic kidnapped her. Although she appeared in the game, she did not become playable until Sega introduced Sonic Drift, but it was not released outside of Japan. Therefore, you did not see her until Sonic Drift 2 came out. Her special skill is using her Piko Piko Hammer like no one's business.
Doctor Ivo Robotnik is better known as Doctor Eggman, or just Eggman. Being the primary evildoer in the series, he debuted in the first release of Sonic the Hedgehog, and was attempting to collect the Chaos Emeralds so he could turn the animals into robots. He claims that he is a genius of the highest caliber, boasting an IQ of 300. He is a renowned authority on robotics, but his goal is to conquer the world and create Eggmanland, his utopia full of robots that are readily available to do his bidding.
Knuckles is one of Sonic's adversaries, but he is friendlier than other Sonic characters. He lives on Angel Island, which hovers above ground, high in the sky because of the great power of the Master Emerald. Since Knuckles is the last member of the Echidna people, it is his duty to guard the Master Emerald. He has an exceptional skill in the martial arts, with the ability to shatter boulders, trap air under his dreads so he can glide and has amazing punching ability.
Vanilla the Rabbit is Cream the Rabbit's devoted mother.
Cheese the Chao is neutral and constantly accompanies Cream the Rabbit. It is discernable from other chaos by its red bowtie, and can attack for Cream by running into her enemies.
Cream the Rabbit is a tawny colored rabbit with humanlike features. Her Chao, Cheese, always accompanies her. She is a somewhat na´ve character, because she was raised like a princess by her regal mother, Vanilla the Rabbit. She has excellent manners, but occasionally acts like a child. When she flaps her ears, she can fly for short distances.
Chaos is another Chao, except this one has been mutated by the Chaos Emeralds to be a sentinel for other Chaos; it also offers clean water to the altar surrounding the Master Emerald and like Knuckles, protects it. This particular Chao can stretch itself out or turn itself into liquid. Without any Chaos Emeralds, this Chao is nothing, but with each of the Chaos Emeralds it sucks up, it grows more powerful until it becomes Perfect Chaos when it has absorbed all 7 Emeralds.
Although these are just a few of the many Sonic characters that have made appearances in the playing fields of Sonic the Hedgehog, there are still many more. These are just some of the primary characters that you will encounter in your game play. Depending on which game you choose to play, you may encounter some or all of these characters. From its inception in 1991 to today, Sonic is still an incredible character, with excellent playing fields and challenging levels. There are a few more Sonic Characters but for now these are the most known characters.
Welcome to Sonic Games!
We hope you enjoy playing all the free Sonic games we have for you!
Ultimate Flash Sonic 
Sonic Smash Brothers 
Mario vs Sonic 
Super Smash Flash 
Sonic In Mario World 2 
Draw Sonic 
Sonic Snowboarding 
Wave Cyclone 
Sonic Mega Collection 
Shadow The Hedgehog Flash