Megan Ward who is now on General Hospital appeared in four Full Moon movies: Crash and Burn, Trancers 2 and 3, and Arcade. Crash and Burn also starred Eva LaRue, who is currently on CSI: Miami.
Sherilyn Fenn of Twin Peaks starred in Meridian.
Kevin Spirtas starred in Friday the 13th 7: The New Blood before being cast in Subspecies 2 and 3, then he was cast on One Life to Live.0
Marissa Tait was in two Full Moon films; Witchouse and Totem. Then she was cast on The Young and the Restless.
I thought someone might mention her. Helen Hunt was in the first three TRANCERS films, two being Full Moon productions. She started her career long before the TRANCERS films however. She got her "big break" with TV's Mad About You.