It looks like Jack Coleman is going to be in a play on August 10 in Los Angeles. The play is part of the 2012 Summer Playwrights Festival and is written/directed by Scooter Pietsch.
For more information: source.
This is a return to theater after many years – Jack had started out in Theatre and we’re very happy to see him go back!
I don’t know more about it, but I’ll edit this post if anything comes up.