Marg Helgenberger
Acting
Born November 16, 1958 · Fremont, Nebraska, USA
Biography
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). She reprised the role in the sequel CSI: Vegas (2022–present). Helgenberger is also known for playing the role of K.C. Koloski in the ABC drama China Beach (1988–91), which earned her the 19…
Known For · 40 titles
CSI: Crime Scene Investigation
King of the Hill
ER
Frasier
RuPaul's Drag Race
LIVE with Kelly and Mark
The View
Tony Awards
Golden Globe Awards
Late Night with Conan O'Brien
The Talk
Matlock
The Ellen DeGeneres Show
The Price Is Right
American Playhouse
Tales from the Crypt
Intimate Portrait
All Rise
The Larry Sanders Show
Under the Dome
CSI: Vegas
The Tony Danza Show
People's Choice Awards
thirtysomething
Stars in the House
China Beach
Fallen Angels
Bad Boys
Spenser: For Hire
This Week
The Hidden Room
Erin Brockovich
Species
The Early Show
Intelligence
A Dog's Journey
Mr. Brooks
Species II
The Tommyknockers
Fire Down Below