This was followed by another critical success in the recurring role of Secret Service Agent Gina Toscano in the NBC political drama The West Wing in 2000.

She portrayed Sara Sidle in the CBS police procedural crime-drama CSI: Crime Scene Investigation, both as a regular (2000–2007, 2010–2015)[2] and recurring (2008–2010) cast member.

She subsequently enrolled as a drama student at the Lee Strasberg Institute in New York City, under the tutelage of actor William Hickey.

[citation needed] Fox had minor roles in films and television series, including the opening scene of a 1993 episode of the NBC legal drama Law & Order.

[citation needed] From 1999 to 2000, she had a recurring role as Secret Service Agent Gina Toscano in the first and second seasons of the NBC political drama The West Wing.

[7] In 2000, she gained a regular role on the CBS police procedural drama CSI: Crime Scene Investigation as Sara Sidle, a Las Vegas forensic scientist.

"[15] Fox requested that the money collected during the "Dollars for Sense" campaign be donated to CASA, an organization dedicated to aiding foster children.

Fox was initially scheduled to appear in the tenth season premiere ("Family Affair," which aired September 24, 2009) and four additional episodes.

[citation needed] After leaving CSI in 2007, Fox produced the musical Stay Forever: The Life and Music of Dusty Springfield starring Kirsten Holly Smith, about the tension between the public image and private life of bisexual musician Dusty Springfield,[20] which played at the Renberg Theatre in the Los Angeles Gay and Lesbian Center.

Fox is the co-founder of Honeypot Productions, an independent avant-garde theatre company in Los Angeles that has produced five original plays.

[24] Fox attended and read at the Los Angeles book launch of Karen Dawn's Thanking the Monkey, and was seen on Access Hollywood discussing how being vegetarian helps the environment.