Was actor Yul Brenner naturally bald or did he shave his head? If he shaved his head, was he the first?

He shaved his head after being persuaded. He was not naturally bald. They said, if he did not like the look, he could easily wear a wig until it growed out again.

https://www.skalp.com/yul-brynner-first-bald-hollywood-heart-throb/ This suggests although he had hair, as you can see from the picture in the reply below it was receding and he shaved it to disguise the fact, which has become far more popular to do in recent years. (satguru)

Brynner had hair in his early roles, but something seemed off:
http://www.indyprops.com/pp-wilson1.jpg

Here's a real photo:
http://i88.photobucket.com/albums/k182/dosh13/brynner7.jpg