Marcia A. Strassman (born April 28, 1948 – October 24, 2014) was the actress that portrayed Nancy Sterngood in Tremors: The Series. She replaces Charlotte Stewart who couldn't portray Nancy due to contract issues. She was an American actress best-known for her roles as Julie Kotter in the TV sitcom Welcome Back, Kotter and Diane Szalinski in the 1989 feature film Honey, I Shrunk the Kids and its first sequel.