Jim Parsons, Jessica Hecht, and Carol Kane discuss the Roundabout Theatre Company’s Broadway production “Harvey.” Parsons stars as the charming Elwood P. Dowd, who has one character flaw: an unwavering friendship with a 6-foot-tall, invisible white rabbit named Harvey. His sister Veta (Jessica Hecht) delivers Elwood to the local sanatorium, but the doctors mistakenly commit her, and Elwood slips out of the hospital with his invisible rabbit. “Harvey” opens is playing at Studio 54.