The sons of the great detective Fenton Hardy, Frank and Joe are eager to impress their father with their mystery solving skills.
Director: R.G. Springsteen
Tim Considine
Frank Hardy
Tommy Kirk
Joe Hardy
Russ Conway
Fenton Hardy
Sarah Selby
Aunt Gertrude Hardy
Carole Ann Campbell
Iola Morton
Andy Clyde
Lacey
John Baer
Eric
Hugh Sanders
Mr. Binks
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