1. Cherry Valance: Cherry is a Soc (a member of the affluent social group in the story) and the girlfriend of Bob Sheldon, one of the main antagonists. She is initially portrayed as a typical Soc, but as she interacts with Ponyboy Curtis, one of the main characters, she begins to question her social prejudices.
2. Marcia: Marcia is a Soc who is romantically involved with Johnny Cade, another main character. She is depicted as a kind and compassionate person who genuinely cares for Johnny and tries to understand his struggles.
3. Dally Winston: Dally is one of the older members of the greaser gang that Ponyboy and his friends belong to. He is known for his tough and reckless nature, but he also shows moments of vulnerability and loyalty towards his friends.
4. Tim Shepard: Tim is a teacher at Ponyboy's school and becomes a mentor and a source of support for him. He encourages Ponyboy to pursue his writing and helps him deal with his emotions and challenges.
5. Randy Adderson: Randy is a Soc and Bob Sheldon's best friend. He is initially portrayed as a troublemaker and a participant in the violent clashes between the greasers and the Socs. However, as the story unfolds, he shows signs of empathy and begins to question the senselessness of the conflict.
6. Two-Bit Mathews: Two-Bit is a member of Ponyboy's greaser gang and is known for his playful, comedic nature. He often provides comic relief in the story, but he also demonstrates loyalty and support toward his friends.
These are just a few of the supporting characters who contribute to the development of the story and provide different perspectives on the themes explored in "The Outsiders."