That is, people who are best known / first became famous as actors, but can also sing like a professional:
Katey Sagal (best known as Peg Bundy from Married... with Children)
John Schneider (best known as Bo Duke from The Dukes of Hazzard)
Ja'Net DuBois (best known as Willona Woods from Good Times)
Cecily Strong (best known as an SNL cast member)
Eddie Murphy (best known as an SNL cast member and movie star)
Nicole Kidman
Ewan McGregor
https://www.youtube.com/watch?v=2lGP78ckF_Q
Seth MacFarlane. I may not be his biggest fan but man does he have a beautiful singing voice
shareSteve Martin - King Tut was #17 Pop
Gwyneth Paltrow - Cruisin' (duet with Huey Lewis) was #1 Adult contemporary
Bruce Willis - Respect Yourself was #5 Pop
Jim Nabors
shareI forgot about him. About a year ago I saw an episode of Gomer Pyle, U.S.M.C. on TV where he sang "The Impossible Dream" - https://youtu.be/yJlgio-UOng?si=lgSY0kmom9mVFOta&t=240 - and I looked it up online to see if it was really him singing.
shareChris Pine (heard him sing Sinatra on the Ellen show)
share