Polly Cooper

Polly Cooper is the older sister of Betty Cooper and the former girlfriend of the deceased Jason Blossom.

Biography
Polly grew up in Riverdale with her parents, Alice and Hal Cooper, and her younger sister Betty. She used to be in a relationship with Jason Blossom, but it didn't end well. While they were together, Jason "meant everything to Polly, but she meant nothing to him," according to Betty. Her parents were furious about their relationship and her mother refused to acknowledge her as her daughter. This drove her to a mental breakdown, and she had to move to a group home. Her parents blame Jason for this, but Betty blames their mother.

Polly was listed in the football players playbook next to Jason's name, her worth being a total of nine points.