HE'S A MAN, NOT A MANGO
Known for such manic characters as Mango and Mr. Peepers, Kattan, 35, has only fond memories of SNL. "I got to swap spit with Charlize Theron and slap J. Lo on the butt," he says. "In what other job do you get to do that?" After "feeling a little lost" since leaving the show in 2003, a refreshed—and somewhat more restrained—Kattan is back playing the pigheaded roommate of a gay man in the movie comedy Adam & Steve, out March 31. Now, he says, "people on the street occasionally yell 'Mango,' but more often they yell my actual name, which is good."

WHY HE'S SO HYPERACTIVE
Maybe it's rebellion. Growing up, "I lived up in Mt. Baldy [Calif.] with my mother and stepfather," says Kattan. "There's a Zen center there, and he was a Zen monk. It's hard to get into meditation when you're 5." Instead, "I discovered I could get girls to pay attention to me if I fell down all the time."

HIS DREAM ROLE
To play silent film comedian Buster Keaton. "We have a very similar physical quality," says Kattan, who does Pilates to keep in pratfall-ready shape. "I just don't ever want to hear that Matthew Broderick is doing The Buster Keaton Story."

WARNING: AVOID WIRE HANGERS
Kattan shares his Hollywood home with his girlfriend of nearly a year—model Sunshine Tutt, 29—and her Chihuahua Pepper. "Next door is the house that Joan Crawford lived in, the Mommie Dearest house," he says. "They say at night you can sometimes hear her wail."