The Shakespeare Theatre Company presents Twelfth Night, this year's 20th annual "Free for All." Randy Harrison plays Sebastian as part of a cast that also includes Shakespeare Theatre Company vets Gregory Wooddell, Floyd King, Tom Story and Nancy Robinette. Alan Paul, who most recently gave us Signature Theatre's production of I Am My Own Wife, directs. Closes tomorrow, Sunday, Sept. 5. Harman Center for the Arts, 610 F St. NW. Tickets are free, distributed this year through an online lottery system, held daily. Call 202-608-6350 or visit shakespearetheatre.org.