TERRY SWEENEY'S FIRST IMPRESSION
Former Saturday Night Live cast member TERRY SWEENEY, who is to NANCY REAGAN What CHEVY CHASE was to GERALD FORD and who just finished playing Nancy (faux Adolfo suit and all) in an off-Broadway one-man show, It's Still My Turn, predicts that the former First Lady will stay in politics. "I see her putting a want ad in some paper in a small country, maybe in Central America," says Sweeney, 39. "It might say, 'Experienced First Lady. Needs large staff. Willing to run your country.' I just can't see her in retirement. I see her as thinking, 'Oh, there must be some little country that needs some help, a little cleaning and perking up.' I see her as bringing gentrification to the Third World in the future."

BEGLEY JR.'S PARENTAL GUIDANCE
Parenting tips from ED BEGLEY JR., 41, a star of NBC's new Parenthood series and the father of NICK, 11', and AMANDA, 13: What's the biggest lesson Ed has learned about daddydom? "Bring changes of clothing when visiting amusement parks." Biggest mistake he ever made as a father? "Not buying that Xerox stock when it was so damned low." Something he does differently from the way he was raised? "No corporal punishment. It doesn't look good in the press. "So how does he punish his kids? "Verbal abuse. Humiliate them in front of their friends. That seems to work best.

SHADES OF BROWN
"It's wonderful BILL COSBY is employing black actors," says CHARNELE BROWN, 25, who plays premed student Kim Reese on the Cosby spin-off A Different World. "But we come in all shapes and all colors. When I saw the show the first year, I couldn't relate to any of the characters." Which is why Brown, who has darker skin than most of A Different World's, freshman crop of actors, says she was "really surprised when I got the call for the screen test" after the show had been on for a season. "I couldn't believe it. I don't think Cosby planned it intentionally that way, but I did wonder why there were no dark-skinned women on the series. I get mail from darker-skinned black people thanking me for being on the show and playing a bright person. Before, dark-skinned women on TV always had no husband and five children. The 'My man done done me wrong' women, you know?"

BEVERLY HILLS POP
His hard-living past qualifies him as one of rock's more jaded veterans, but IGGY POP, 43, remains green about certain things. "The most surprising thing to me about this," says Pop, referring to his new, cleaned-up life-style, "is that I have a residence. I could never have signed even a lease before. Things like vacuuming the house and folding my domes also surprise me, but the biggest mind-blower is when I pull out my American Express card. It's only a green one. I haven't gone for the gold yet. I used it the other day in Beverly Hills, and the girl at the cash register said, 'Oh, why, I haven't seen one of these in years. A green card, how quaint.' " Pop, whose well-received album on Virgin Records, Brick by Brick, is his most commercial to date, says the worst career advice he ever got came from executives at Elektra Records. "After dropping me [in the early 1970s], they said they would consider doing a record if I would do a 'DAVID CASSIDY thing.' I almost cried."