Daphne Lee Ashbrook is an American actress best known for playing Grace Holloway in Doctor Who: The Movie, Melora Pazlar in Star Trek: Deep Space Nine, Jackie Kowalski in Hollywood Heights, and Dawn Atwood in The OC.

Dr. Grace Holloway is a fictional character played by Daphne Ashbrook in the 1996 television film Doctor Who, a continuation of the long-running British science fiction television series Doctor Who. A cardiologist from San Francisco in 1999, she assists the Eighth Doctor in defeating the renegade Time Lord, the Master.