how many are alive.

Ummm... gazillions who practice kung fu and judo? I have several friends who practice both.

thank you very much.

If you mean martial arts actors, here's a list.

https://martialartsactionmovies.com/top-75-martial-arts-movie-stars-and-their-training-backgrounds/

You can Google each individual's name to see which are still alive.

Oh, maybe family meant actors?

thank you guy very very much.

Did you get the answer you were looking for, family?

yes i did.