My wife and I attend lots of shows at the Repertory Theatre of St. Louis, and a smile always crosses our faces whenever we see that the cast includes Joneal Joplin. We’ve seen him in “Follies,” “You Can’t Take It With You,” “Witness For The Prosecution,” and many others. On the occasion of Joplin’s one hundredth Rep production, “A Christmas Carol,” Judith Newmark wrote this appreciation of the veteran actor.