Sen. Eric Schneiderman has released the third ad of his AG campaign, which, as I reported late last month, includes cameos by a number of high-profile Democrats, including former state Comptroller H. Carl McCall.

McCall’s effort on the Manhattan lawmaker’s behalf is noteworthy because, of course, he was the state’s first black major-party gubernatorial candidate and was challenged by AG Andrew Cuomo in a long-shot primary bid back in 2002. (Trailing badly in the polls, Cuomo dropped out one week before primary day).

Cuomo has yet to pick a favorite from among the five Democrats vying to replace him, but Schneiderman, with his history of service in the Senate and lengthy list of labor backers, is clearly not the AG’s first choice.

Also appearing in the ad: Former NYC Mayor David Dinkins, Reps. José Serrano and Jerry Nadler, NYC Council Speaker Christine Quinn, former NYC Public Advocate Betsy Gotbaum, and former NYC Comptroller Bill Thompson.

There’s also a kicker from Eric’s daughter, Catherine.

“In the past few weeks, momentum is building and it’s become increasingly clear that Eric Schneiderman is the best choice for attorney general,” said Schneiderman campaign spokesman James Freedland.

“Every day, more and more leading progressive New Yorkers are announcing their support for Eric’s campaign. With this new ad, New Yorkers can hear straight from the voices they know and trust about why Eric Schneiderman is the progressive champion we need as our next attorney general.”