I include the translator in in the Authors field (and sometimes, the Author does the translation so
there is no (trans) entry)
Joe Writer & Mary Scribe (trans)
I use a 3's the limit rule (because {Authors} is in my device filename template)
I put the Editors name, standalone when there are more than 2 Authors
Jack Dann (ed)

I have another 'authors' type field that gets use for those names as well as pen names
Other names that I put into {authors}
Tom Clancy (creator)
YMMV but now you have IDEAS