The Hardy Boys/Nancy Drew Mysteries (1977)

Shaun Cassidy, Darleen Carr, and Parker Stevenson in The Hardy Boys/Nancy Drew Mysteries (1977)

Shaun Cassidy and Parker Stevenson in The Hardy Boys/Nancy Drew Mysteries (1977)

Lloyd Nolan in The Hardy Boys/Nancy Drew Mysteries (1977)

Duncan Gamble in The Hardy Boys/Nancy Drew Mysteries (1977)

Darleen Carr in The Hardy Boys/Nancy Drew Mysteries (1977)

Ed Gilbert and Jack Kelly in The Hardy Boys/Nancy Drew Mysteries (1977)

Shaun Cassidy in The Hardy Boys/Nancy Drew Mysteries (1977)

Parker Stevenson in The Hardy Boys/Nancy Drew Mysteries (1977)

Peter Weiss in The Hardy Boys/Nancy Drew Mysteries (1977)

Kopi Sotiropulos in The Hardy Boys/Nancy Drew Mysteries (1977)

Pamela Jean Bryant in The Hardy Boys/Nancy Drew Mysteries (1977)

Shaun Cassidy and Pamela Jean Bryant in The Hardy Boys/Nancy Drew Mysteries (1977)

Darleen Carr and Parker Stevenson in The Hardy Boys/Nancy Drew Mysteries (1977)

John Colicos in The Hardy Boys/Nancy Drew Mysteries (1977)

John Colicos and Lloyd Nolan in The Hardy Boys/Nancy Drew Mysteries (1977)