Mary Marg Helgenberger (born November 16, 1958) is an American actress. She began her career in the early 1980s and first came to attention for playing the role of Siobhan Ryan on the daytime soap opera Ryan's Hope from 1982 to 1986. She is best known for her role as Catherine Willows in the CBS police procedural drama CSI: Crime Scene Investigation (2000–13) and the subsequent TV movie Immortality (2015).
Erin Brockovich
⭐ 7.4Species II
⭐ 5.166In Good Company
⭐ 6Mr. Brooks
⭐ 6.9Bad Boys
⭐ 6.8Species
⭐ 5.971My Fellow Americans
⭐ 6.038The Last Time I Committed Suicide
⭐ 5.1Columbus Day
⭐ 4.9Fire Down Below
⭐ 5.7Wonder Woman
⭐ 7.2After Midnight
⭐ 5.6The Cowboy Way
⭐ 5.7Thanks of a Grateful Nation
⭐ 3.5Happy Face Murders
⭐ 4.8Crooked Hearts
⭐ 5.8Through the Eyes of a Killer
⭐ 5.4Death Dreams
⭐ 5.9Lethal Vows
⭐ 5.5Lie Down with Lions
⭐ 3.4Perfect Murder, Perfect Town: JonBenét and the City of Boulder
⭐ 6.1Distant Cousins
⭐ 5.5Conundrum
⭐ 5.8Gold Coast
⭐ 5.8Blind Vengeance
⭐ 0Inflammable
⭐ 0Where Are My Children?
⭐ 5.9CSI: Immortality
⭐ 7.1China Beach: Pilot
⭐ 0Giving Up the Ghost
⭐ 6Almost Friends
⭐ 6.3Just Looking
⭐ 3In Sickness and in Health
⭐ 1Keys
⭐ 5When Love Kills: The Seduction of John Hearn
⭐ 1Always
⭐ 6.3Murder Live!
⭐ 5.7This Changes Everything
⭐ 6.2A Dog's Journey
⭐ 8.1Partners
⭐ 4.167Blind Vengeance
⭐ 1