Arena Stage, Zelda Fichandler, producing director, Thomas C. Fichandler, executive director presents "Horatio," play and lyrics by Ron Whyte, music by Mel Marvin, directed by Charles Haid, setting by Karl Eigsti, costumes by Shadow, lighting by William Eggleston, musical direction and orchestration by Mel Marvin, movement director Virginia Freeman, technical director Henry R. Gorfein, associate director Alan Schneider, associate producer Hugh Lester.