4 Stars, Same Screen Time
If there was one thing that was mostly important for the producers of Bonanza was that none of the characters would ever feel overshadowed by the other co stars. Therefore, they always made sure they were portraying all four stars equally so they would all be getting the same screen time when the opening credits were rolling. In fact, the producers were so sensitive about this issue that they actually swapped the order in which the lead stars were billed. This kept the show very well balanced in terms of how it let each actor shine in his own way.