Michael Landon is famous for numerous acting projects – Bonanza, Little House on the Prairie, Highway to Heaven among them – but did you know that he was once a teen pop idol? In 1957, Landon ...

Landon was a guiding figure to "all of us littles," Gilbert said, referring to herself, Melissa Sue Anderson and "the babies" of the cast. "He just sort of nurtured performances out of us.

Landon played Charles Ingalls on the show. "I just remember being seriously overjoyed that I got to work with Michael again, because he was so kind and so funny and so witty and so smart," Doherty ...

Melissa Gilbert, Michael Landon and Melissa Sue Anderson on the cover of PEOPLE's Sept. 11, 1978 issue.