The committee advising the not-for-profit arm for City Hall initiatives has been stacked with big mayoral campaign donors.

Besides actress Cynthia Nixon, nearly two dozen of 58 Mayor’s Fund to Advance New York City appointees (or their relatives) gave Mayor de Blasio’s campaign the maximum allowed, or raised above $4,950 as intermediaries, including Gina Argento, Jay Eisenhofer and Anthony Bonomo.