Ally Walker is an American actress, producer, director and screenwriter. Ally is best known for her roles as Doctor Samantha Waters on the NBC crime drama series Profiler.

Walker grew up in Santa Fe, New Mexico, and attended the University of California, Santa Cruz, where she obtained a degree in biochemistry.

Ally worked as a researcher on a genetic engineering project, but discovered an interest in performing. Her professional dramatic career began in 1988. Her interest in acting had been kindled, and the scientific career was put on hold indefinitely.