Snarf Zagyg
Notorious Liquefactionist
I lost count of the number of times that I saw the same Redshirt, played by David L. Ross, die on a mission. Armin Shimmerman played several aliens, with different appliances on his face, in Next Generation. Combs already played two different characters in DS9, Inspector Brunt (FCA) and Weyoun. Suzie Plakson played a doctor, a Vulcan science officer, a Q, and the half Klingon K'Ehleyr in TNG alone. Reusing actors, with different rubber bits, is a Star Trek tradition
Not so much in major roles across series, which is what has been suggested.
I can’t think of it happening in any CBS Access show yet - am I wrong?