Terri Treas is an American actress, writer and director who has starred in films and on television.

Alien Nation is a science fiction police procedural television series in the Alien Nation franchise. Adapted from the 1988 Alien Nation movie, it stars Gary Graham as Detective Matthew Sikes, a Los Angeles police officer reluctantly working with "Newcomer" alien Sam "George" Francisco, played by Eric Pierpoint. Sikes also has an on again-off again flirtation with a female Newcomer, Cathy Frankel, played by Terri Treas.