Actors:
Shaun Cassidy as Joe Hardy,
Parker Stevenson as Frank Hardy,
Ed Gilbert as Fenton Hardy,
Edith Atwater as Aunt Gertrude [ 1 ],
Lisa Eilbacher as Callie Shaw [ 1 ],
Jack Kelly as Harry Hammond [ 3 ],
Phillip R. Allen as Harry Gibbon [ 3 ],
Pamela Sue Martin as Nancy Drew [ 1-2 ],
Janet Louise Johnson as Nancy Drew [ 2 ],
William Schallert as Carson Drew [ 1-2 ],
Jean Rasey as George Fayne [ 1 ],
Susan Buckner as George Fayne [ 2 ],
Ruth Cox as Bess Marvin [ 1-2 ],
George O'Hanlon Jr. as Ned Nickerson [ 1 ],
