Eleni Peyser and George Chapin show off their costumes in a dress rehearsal for Potomac Theatre Company's production of Damon Runyon's “Guys and Dolls.” Opening night will be this Friday, Nov. 22 at 8 p.m. in the The Blair Family Center for the Arts at the Bullis School, 10601 Falls Rd., Potomac. The musical features a 12-piece orchestra as background for Frank Loesser's songs. The sets were designed and built by members of PTC and local volunteers. Twenty-three actors will sing and dance their way through this popular musical, which is directed by Ron Sarro and produced by Marilyn and John Shockey. Performances will be given on Fridays and Saturdays at 8 p.m. and Sundays at 2 p.m. on Nov. 22, 23, 24 and 30 and Dec. 1, 6, 7 and 8. There will be no performance on the Friday following Thanksgiving. Tickets cost $15 for adults, $13 for seniors and $10 for students. Call 301-299-8571 or see www.srbnet.com/ptc.