Tom Kane, who is well known among Star Wars for Yoda in pretty much every instance Frank Oz wasn't involved (pretty much everything outside the movies since the late 90s/early 00s) as well as Yularen, the narrator in Clone Wars, and more recently Admiral Ackbar in The Last Jedi (as the voice) has had a stroke.
https://www.cbr.com/tom-kane-star-wars-actor-stroke/