Lindsay Elisabeth Frost (born June 4, 1962) is an American former actress. She portrayed Marjorie Westcott in Season 3 of CSI: Crime Scene Investigation and Joanne Henderson during Season 2 of CSI: Miami.


Frost played the role of Betsy Stewart Andropoulos on the daytime soap opera As the World Turns from 1984 to 1988. She also played Dr. Jessie Lane in the drama Birdland, Sergeant Helen Sullivan in the crime drama High Incident, Fay Pernovick in the drama Nightmare Cafe, and Claire Stark in the crime drama Shark. She appeared on Crossing Jordan in the recurring role of Maggie from 2001 to 2006.

She also appeared in the cult films Dead Heat (1988), as Randi James and The Ring (2002), as Ruth Embry.

On Broadway, Frost appeared in M. Butterfly (1988).