A poorly-educated housewife fights companies polluting her hometown's water table in upstate New York during the 1970s.
| Actor | Role |
|---|---|
 Marsha MasonLois Gibbs | Lois Gibbs |
 Bob GuntonHarry Gibbs | Harry Gibbs |
 Penny FullerJeannie Kolchak | Jeannie Kolchak |
 Roberta MaxwellMary Belinski | Mary Belinski |
 Jeremy LichtMichael Gibbs | Michael Gibbs |
 Louise LathamPat Kinsman | Pat Kinsman |
 James RayMr. Bain | Mr. Bain |
 Bianca TaylorGail Shepherd | Gail Shepherd |
 Thomas HillDr. Halperin | Dr. Halperin |
 Robert PicardoLarry McGuinness | Larry McGuinness |
 Priscilla MorrillMrs. Fowler | Mrs. Fowler |
 Raleigh BondDave Hobart | Dave Hobart |
 Mackenzie AstinTony Belinski | Tony Belinski |
| MMichael FlanaganSpokesman | Spokesman |
| TTina M. KayeMissy Gibbs | Missy Gibbs |
 Peter FoxMr. Davis | Mr. Davis |
 F. William ParkerDr. Ulster | Dr. Ulster |
 Hope ClarkeChris | Chris |
| NNancy SteenBrenda | Brenda |
| JJohn DoolittleMissy's Doctor | Missy's Doctor |
| TTom FuccelloNewsman | Newsman |
| DDolores SandozWoman | Woman |
 Patricia HerdMaggie Hobart | Maggie Hobart |
 Art LaFleurHomeowner | Homeowner |
 Dick ChristiePhotographer | Photographer |
 Len LawsonHome Owner | Home Owner |
| BBob SwainMan In Line (Uncredited) | Man In Line (Uncredited) |