James and Jamesy in the Dark is an extraordinary piece of theater that fits no mold but its own. It draws on many sources—or pays homage to them—but it is a unique, thought-provoking delight. Two gifted physical performers (in whiteface and dressed top-to-toe in gray outfits, including gloves) embody the title characters. Eventually, the audience comes to recognize the taller one as Aaron Malkin’s more phlegmatic James and the shorter, more emotionally fragile one as Alastair Knowles’s Jamesy.