Actor Sam Waterston has joined the Human Rights Campaign's (HRC) New Yorkers for Marriage Equality campaign.

“Let's make the system fair and end institutionalized bigotry,” Waterston says in his 30-second video. “It's time for New York to lead again. Join us.” (The video is embedded in the right panel of this page.)

The 70-year-old Waterston, a practicing Episcopalian, is best known for his Golden Globe-winning portrayal of Jack McCoy on the long-running NBC police drama Law & Order. He was nominated for an Oscar for playing American journalist Sydney Schanberg in The Killing Fields.

Last week, former Law & Order: Special Victims Unit star Chris Meloni, who played bisexual on the HBO prison drama Oz, recorded a similar video.

Waterston and Meloni's ads are part of an ongoing campaign by HRC, the nation's largest gay rights advocate, which hopes to build momentum on the issue now ahead of a second attempt to legalize the institution in the state later this Spring.

According to a poll released last week, a majority (58%) of New York voters favor giving gay and lesbian couples the right to marry.