Jackie Chan, Pauley Perrette, Jason Alexander and Giada de Laurentiis are among the celebrities urging support for equal rights for LGBT people in a new public service campaign by GLAAD helmed by director Brett Ratner.

The campaign, titled Coming Out For Equality, features a diverse group of straight celebrities and athletes “coming out of the closet” as supporters of equality.

“Our straight allies are essential participants on the road to full acceptance of the LGBT community,” said GLAAD's Wilson Cruz in a statement. “From athletes to faith leaders to elected officials across the political spectrum, straight Americans are speaking out for equality at a rapid rate and we hope more across the nation will be inspired to take action in support of LGBT people.”

“I know what it's like to be in the closet,” Jason Alexander is heard saying from behind a closet door in one of the 30-second videos. “I know what it's like to be bullied and attacked because someone or some group thought I was different or below them. And I know what it's like to do nothing when it happens to someone else.”

“So I'm coming out of the closet,” Alexander says as he steps out from a closet, “as an ally for equality for everyone.” (The video is embedded on this page. Visit our video library for more videos.)

GLAAD announced last year that it was developing the campaign with Ratner after he stepped down as producer of the Oscars over an incident in which he used an anti-gay slur.

(Related: Brett Ratner says something positive came from anti-gay slur incident.)