At the beginning of her adult career, Raver acted in commercials for Visa and Jeep. Her big break came with her Broadway debut in the play "Holiday" in which she co-starred with Laura Linney and Tony Goldwyn. She also appeared in the feature film City Hall with Al Pacino. She also co-starred with John Spencer (of NBC's The West Wing) and David Schwimmer in "The Glimmer Brothers", a production of the Williamstown Theatre Festival, written by Warren Leight. After her time on Third Watch, she was cast as Audrey Raines in the popular television series 24, and was a series regular for two seasons.

During the Fall 2006 television season, Raver starred in the ABC television series The Nine. Although the show received outstanding pre-season ratings, it did not take off, and was therefore cancelled. She reprised her role in 24's season 6 as Audrey Raines. Although Audrey Raines was presumed to have been killed, it was later revealed that she is still alive and was being held captive by