Guest Stars Brian Keith as Del Forman Art Evans as Walt Taylor Todd Thawley as Tom Raven Eric Scott Woods as Mitch Forman Co Starring Viviane Vives as Julia Labsau Don Hayden as Dr. Vince Sheldon Adelina Anthony as Maria Alonco Burt Blackfox as Billy Raven Rodney Brooks as Worker Gary Pike as Semi-Truck Driver Uncredited Karl J. Morris as Geologist