"Had Corey wished to be anywhere, he would have loved to be with us last night, to be with all his old friends," Kristy Swanson tells PEOPLE. "We're glad his mom got to be a part of it too."
Guests included Haim's good friend Corey Feldman, Todd Bridges, Baywatch's Nicole Eggert, Teen Witch star Robyn Lively and former Playmate Julie McCullough.
Earlier this week, Feldman blogged that Haim's mother preferred a discreet gathering with friends rather than a larger public memorial. Haim died March 10 at age 38.
"It was like a reunion," says Swanson of the three-hour gathering, which began at 7:30 p.m. "Robyn brought tons of old pictures – lots of people with crazy hair and funny clothes, and people gave Judy gifts. I had a picture of me with Corey on the set of Buffy the Vampire Slayer, and I gave that to her. There were no speeches, just lots of picture taking, talking and sharing pictures of our kids."
According to Swanson, Judy Haim is returning to Toronto to continue chemotherapy treatments. She also plans to help care for her newborn grandchild by Corey's older sister, Carol. "That's Judy's new focus," says Swanson.