Lassie

Corey Sevier

as

Timmy Cabot

Michael Yarmush

as

Clark

Susan Almgren

as

Dr. Karen Cabot

Walter Massey

as

Dr. Donald Ste...

Tod Fennell

as

Jeff Mackenzie

Leni Parker

as

Lucy

Brigid Tierney

as

Billie

Vanessa Lengies

as

Charity