Actress Glenn Close, who has campaigned to eliminate the stigma surrounding mental illness, was the special guest at a Sunday afternoon fund-raiser for the National Alliance on Mental Illness of Massachusetts. The party took place at casual Canary Square in Jamaica Plain. Close walked over to the event with Massachusetts Supreme Judicial Court Justice Margot Botsford , whom the six-time Oscar-nominee introduced as her high school roommate. Close, who lives in Maine, said she enjoys using her celebrity to advocate for mental health organizations, including Bring Change 2 Mind, which she cofounded after dealing with mental illness in her own family. Close’s sister has bipolar disorder and her nephew lives with schizoaffective disorder. “They, to me, are heroes, because they are willing to out themselves,” she told us. Close said the advocacy work is just a part-time gig because she’s still acting. According to the Internet Movie Database, she’s set to star in “The Grace That Keeps This World” with Brit Marling. Asked about life in Scarborough, Close said she is hearing that Roger Goodell, the NFL commissioner, will soon be one of her neighbors. “I haven’t met him but I heard he plans to come up to our neck of the woods,” she said.