Frank and Joe Hardy are the sons of Fenton Hardy, a famous private detective. Finding everyday life at home in Bayport dull, the boys hope their father will let them work on one of his cases. Disappointed when he tells them his work is too dangerous for children, they are more determined than ever to follow in their dad's footsteps, and solve mysteries.
Tim Considine
Tommy Kirk
Florenz Ames
Russ Conway
Sarah Selby
Robert Foulk
Carole Ann Campbell
Donald MacDonald
Arthur Shields
Charles Cane
Frances Morris
Brick Sullivan
Mort Mills
Don C. Harvey
Dan Sturkie
William Henry
Jess Kirkpatrick