In this story from the traditional English folklore, Chris Dinolfo plays the title role. Our hero sides with the townsfolk against the cruel Sheriff of Nottingham and the even crueler, greedier King John. With his band of Merry Men and the lovely Maid Marian, Robin robs the rich to help the poor. Experience sword fighting, bows and arrows and miraculous escapes. Best for ages 4, up. Plays through May 20 at Imagination Stage, 4908 Auburn Ave., Bethesda, MD. You’re a Good Man, Charlie Brown runs from June 23 to Aug. 12. imaginationstage.org.