Cool Bulletin Board idea to "spotlight" a student or famous person. I would do both. Maybe every week a different actor, playwright, designer, etc to research to extra credit or a weekly report, and every now and then a student, to make them feel special having been up on the same wall as a big name.
Fluency 1 - Work on expression and fluency by having the students read a paragraph after choosing one of these cards that gives them a different voice or action to do while reading. It keeps their attention while they're learning different ways to read. Or you can use this to help kids remember the spelling for sight words