Carolyn Hennesy (born June 10, 1962 in Los Angeles, California, U.S.) is an actress known for a recurring role on the television program Dawson's Creek and starring in the 2002 film Global Effect. She has also had supporting roles in the films The Heat Chamber (2003) and Engaging Peter (2002), as well as two roles in three appearances on That '70s Show. She is currently playing attorney Diane Miller on General Hospital, a role she started in January 2007. She also guest starred on Reba, playing Sue Montgomery - Van Montgomery's mother. Carolyn Hennesy also voiced Blair Lansfield in the video game Star Ocean: Till the End of Time.

Niece of actress Barbara Rush.

Is a trapeze artist

Has been the hostess for dozens of infomercials

Daughter of Dale Hennesy

Cousin of Claudia Cowan.