Star Grinch wrote:
I was once asked why did Avery Brooks shave his head. There's a DS9 question.
I answered, he was trying to copy Picard.
I heard Avery Brooks as an actor hated the look he had in the early seasons. He much preferred to be bald and with a goatee, but TPTB didn't want two bald captains on at the same time. Brooks was finally allowed to shave his head when TNG ended.
Frakes had his "growing the beard" moment between seasons. Gene Roddenberry liked the look so much that the beard was kept.