Michael Landon, who starred as Charles Ingalls on Little House on the Prairie and Little Joe Cartwright on Bonanza, is surely one of the most instantly recognizable actors in TV history.

aka "Ma," opposite Bonanza star Michael Landon. Grassle said Landon was an "amazing, multi-talented person" who was "very highly strung, but he was carrying the weight of the show on his shoulders." ...

Michael Landon was once one of Hollywood's biggest TV stars. He is best known for his 14 years as "Little Joe" Cartwright in TV's long-running "Bonanza," and later as Charles Ingalls in nine ...