Dalton got her first break when she played a small role in Tango & Cash in 1989.

She appeared as Jack Nicholson's character Frank Costello's girlfriend Gwen in The Departed (2006).

Dalton is perhaps best known for her role as reporter Dana Bright in USA Network's The Dead Zone, starring Anthony Michael Hall.

She has also appeared in TV movies, such as Danielle Steel's Family Album, They Nest, Surviving Gilligan's Island (2001) (in which she portrayed actress Tina Louise), Babysitter Wanted and Gleason.

She married fellow actor Darren Jack Dalton on August 8, 1993.