The panel focuses on arts and humanities education, cultural diplomacy, economic revitalization through the arts and humanities and special events.
Michelle Obama is its honorary chairwoman and film producer George Stevens Jr. and theater producer Margo Lion had already been named as its co-chairs.
Besides Jessica Parker, Whitaker and Lourd, who is a partner and managing director of Creative Artists Agency, other Hollywood figures named to the group included actors Edward Norton, Kerry Washington and Alfre Woodard, director George Wolfe, independent filmmaker Liz Manne and publicist Andy Spahn.
The list of 25 people from the worlds of arts and entertainment also included cellist Yo Yo Ma, Vogue editor Anna Wintour, philanthropist Teresa Heinz, architect Thom Mayne and ballet dancer Damian Woetzel. (Reporting by Patricia Zengerle; Editing by John O'Callaghan)