The sons of the great detective Fenton Hardy, Frank and Joe are eager to impress their father with their mystery solving skills.
Tim Considine
Frank Hardy
35 episodes
Tommy Kirk
Joe Hardy
35 episodes
Russ Conway
Fenton Hardy
35 episodes
Sarah Selby
Aunt Gertrude Hardy
35 episodes
Carole Ann Campbell
Iola Morton
35 episodes
Florenz Ames
Silas Applegate
20 episodes
Robert Foulk
Jackley the Plumber
20 episodes
Donald MacDonald
Perry Robinson
20 episodes
Arthur Shields
Boles
20 episodes
Andy Clyde
Lacey
15 episodes
Stranger Things
