S is for Star Trek Superstar. Kelsey Grammer comes in at no 7 on ranker , remember him! Superstar Frasier in Cheers. Cheers and Star Trek, two popular high profile Paramount shows watched every week way back in the 80's and 90's, so its hardly surprising actors crossed over from one show to another. Captain Morgan Bateson of Starfleets U.S.S. Bozeman starred in "Cause and Effect."
Kelsey Grammer appeared in the 5th season of Star Trek TNG. The fact is Frasier phoned in Batemans TNG performance so lets not exaggerate here. Bateman is seated on the Bozeman bridge 'cos like what you're looking at is mostly CGI! (hmmm) but entertaining and fun right? (at least he's not under the bridge)