Markus Ruhl is not athletic, this I am pretty confident of.
Shawn probably was. Kevin Levrone could run pretty fast (could you imagine him chasing you down on cycle?). Some other bodybuilders have also proven to be quite athletic.
But you do not NEED to be athletic to be a bodybuilder any more than you NEED to be strong. Sometimes they go together, other times they do not.
So in general, I would say no, bodybuilders are not athletes. Exceptions do exist of course, as listed above.