On NCIS, a character asked what McCallum’s character looked like when he was younger and was told “Ilya Kuryakin”.
He had been making sporadic NCIS appearances remotely, so he’d clearly been limited. Linda Hunt wasn’t even able to make an appearance on NCIS: Los Angeles, only being able to do a voice-over, so that’s someone else whose age and health are concerning.
She came back from that, but she disappeared again due to COVID precautions and has made only a few appearances since. I think I read a report that she wasn’t healthy enough to appear in person for the series finale, not even some sort of taped appearance.
When I was a kid, my family and I liked to go to baseball card shows and there was usually a player signing autographs. We had always heard that Brooks Robinson was one of the nicest guys around and sure enough, even with how in demand he was, he was great.
People may complain because she worked to win within the system, but that’s by far the most effective to achieve lasting progress. There has been a lot of progress thanks to her efforts.