I could see Eric McCormack being an appropriate (and appropriately B-list) choice.
I think Karen Olivo would be an interesting choice for the role, but coming off creating a role in an original musical and winning a Tony for the role she's currently playing, I can't imagine what it would take to get her to replace a role in a limited-run non-profit show.
"Why, I make more money than... than... than Calvin Coolidge! PUT TOGETHER!"
~Lina Lamont
My name wasn't, isn't, and will never be Scott.