With two new leading roles, two tykes and a third on the way, hosting duties for ABC’s revived “Match Game,” and an ongoing gig with WNYC’s “Here’s the Thing,” Alec Baldwin is not in need of summer assignments. But the actor has signed up once again to moderate Q&As for the SummerDocs series at Guild Hall in East Hampton.

As a warm-up to this fall’s Hamptons International Film Festival, the SummerDocs series gets rolling Saturday with “Author: The JT LeRoy Story.” Baldwin, who cochairs HIFF with Randy Mastro, will sit down with the film’s director Jeff Feuerzeig and HIFF artistic director David Nugent. In addition to grilling their guest for the opener, Baldwin and Nugent select the flicks for the series. Media types will no doubt appreciate the documentary about Laura Albert’s fictional character LeRoy, who shot to stardom in the Nineties.

Next month Baldwin will be back at it with another controversial figure at the Aug. 6 screening of the Wall Street docu-thriller “Betting on Zero.” That conversation will include director Ted Braun and his subject, Herbalife’s Bill Ackman. With the presidential election closing in, the summer series will be capped off on Aug. 27 with “A Perfect Candidate.” For that one, Baldwin will have directors R.J. Cutler and David Van Taylor in the hot seat.

The HIFF will run Oct. 6 through 10.

Baldwin has two of his own films due out later this year. He plays a visually impaired novelist in “Blind” with Demi Moore and a liquid courage-loving husband in the comedy “Drunk Parents” with Salma Hayek. Baldwin’s real wife Hilaria is more clear-eyed, so much so the yoga-posing Instagrammer is working on a book, “The Living Clearly Method,” due out in January from Rodale. Her third child with Baldwin, a son, is due this fall.