Isabella Hofmann as Janice Rifkin

Daniel Hugh Kelly as Brook Yates

Cindy Pickett as Jennifer Yates

Scott Olynek as Dwayne Compton

Micah Gardener as Josh Yates

Katie Stuart as Heather Yates

Deryl Hayes as Dr. Herb Boyle

Matt Clarke as Second Boy

J.C. Roberts as Smitty

Carrie Schiffler as Office Manager

Hal Kerbes as Dr. Art Matoyan

Ryan Northcott as Hank

Andy Curtis as Uniformed Cop

Paul Cowling as Bio-hazard worker

Gary A. Hecker as Dog (voice)

Tara Howie as Lab Tech