Rainbow Flynn

Life
Rainbow is Phineas' twin. She lived a happy life with her family - until her eighth birthday. At eight, she was kidnapped by Heinz and shot with the Serve-Heinz-Doofenshmirtz-inator. That's pretty self- explanatory. When she was ten, Phineas began searching for her, eventually finding her. Love prevailed - sappy cliché, I know - and she remembered Phineas.

Before Kidnapping/After Kidnapping
Rainbow wore a white T-shirt with a rainbow skort, hence her name. She has a red ponytail that reaches her skort. She has green eyes.

During Kidnapping
Rainbow wore a black tank top with black jeans. Her eyes became red, and she wore black boots. Her hair was red, but her bangs came down over her left eye.

Before Kidnapping/After Kidnapping
Rainbow was a nice person. She and Phineas were practically inseparable.

During Kidnapping
She became a psycho.

Phineas Flynn
She was about to kill him - until she realized he was her brother. Since then, they get along well.

Ferb Fletcher
Rainbow felt that her relationship with Phineas would be in jeopardy with him around. Since she quit thinking that, they're OK, though she wishes he would talk more.

Isabella Garcia-Shapiro
They get along like normal 10-year-old girls.

Baljeet Tjinder
They have an average friendship.

Buford van Stomm
See Baljeet.