Joe Hardy

Shaun Cassidy

Frank Hardy

Parker Stevenson

Fenton Hardy

Edmund Gilbert

Nancy Drew

Pamela Sue Martin

Jack Kelly

Guest Star

Lloyd Nolan

Patrick Macnee

Phillip R. Allen

Guest Star

Craig Stevens

Guest Star

Darleen Carr

Nancy Drew

Janet Louise Johnson

Guest Star

Rebecca York

Pernell Roberts

Guest Star

Dana Andrews

Carson Drew

William Schallert

Guest Star

June Lockhart

Guest Star

Robin Mattson

Guest Star

John Colicos

Guest Star

Frank Marth

Guest Star

Duncan Gamble

Guest Star

Macdonald Carey

Guest Star

James Booth

Victor Holchak

Guest Star

Dane Clark

Guest Star

Gino Conforti

Nina Axelrod

Guest Star

Don Diamond

Guest Star

Peter Ashton

Guest Star

Tom Castronova

Guest Star

Pamela Jean Bryant

Shepard Sanders

Guest Star

Tanya George

Guest Star

Joseph Ruskin

Guest Star

Maud Strand

Guest Star

Peter Weiss

Guest Star

Walter Klenhard

Guest Star

David Cox

Guest Star

Ian Abercrombie

Guest Star

Leon Ames

Guest Star

Robert Loggia