"Newly widowed Helen Blacke inherits the Blacke Foundation, a scientific research institute located in the Highcliffe Manor on an island off the Massachusetts coast and populated by mad scientists who want to get rid of her."
Shelley Fabares
as Helen Straight Blacke
Stephen McHattie
as Rev. Ian Glenville
Eugenie Ross-Leming
as Dr. Frances Kisgadden
Gerald Gordon
as Felix Morger
Audrey Landers
as Wendy Sparkles
Jenny O'Hara
as Rebecca
Chris Marlowe
as Bram Shelley
David Byrd
as Dr. Lester
Luis Ávalos
as Dr. Sanchez
Ernie Hudson
as Smythe
Harold Sakata
as Cheng