These people may stutter sometimes, but I understand where OP is coming from. For the majority of famous “stutterers” you would basically never know they have a stutter or used to stutter unless you stumbled across that fact somehow. If no one actually knows they have a stutter unless you are told they do, it must not be a very bad stutter at all. The issue for us folks who stutter is that we often CAN’T make it that unnoticeable. I mean, if we could switch off our stuttering at will it wouldn’t really be an issue would it? So seeing a famous person who actually has a stutter that they cannot fully control, like many of us regular stutterers, would be nice to see.