Here are some celebrity guest appearances:
Dana Wheeler-Nicholson
She played Laney Berlin, a party girl and old time friend of the girls' in the season 1 episode "The Baby Shower"
Bradley Cooper
He played Jake, a guy Carrie meets at a bar, in the season 2 episode "They Shoot Single People, don't they?".
Donald Trump
He played himself in the season 2 episode "The Man, The Myth, The Viagra.
Jon Bon Jovi
He played Seth Robinson, a man Carrie meets at her therapist's office in the season 2 episode "Games People Play".
Valerie Harper
She played Wallis Wysel, the mother of one of Carrie's boyfriends in the season 2 episode "Shortcomings".
Bridget Moynahan
She played Mr. Big's second wife, Natasha. She first appeared in the season 2 episode "Twenty-Something Girls vs. Thirty-Something Women". She then appeared in one other episode of season 2, and five episodes in season 3.
John Enos III
He played Mr. Cocky, a man Samantha tries to sleep with in the season 2 episode "Ex and the City".
Alanis Morissette
She played Dawn, a lesbian friend of Carrie's new boyfriend in the season 3 episode "Boy, Girl, Boy, Girl".
Sarah Michelle Gellar
She played Debbie, Carrie's junior editor in the season 3 episode "Escape from New York".
Matthew McConaughey
He played himself in the season 3 episode "Escape from New York".
Vince Vaughn
He played Keith Travers, an L.A. agent to the stars in the season 3 episode "Sex and Another City".
Hugh Hefner
He played himself in the season 3 episode "Sex and Another City".
Heidi Klum
She played herself in a New York fashion show in the season 4 episode "The Real Me".
Lucy Liu
She played herself, a potential client of Samantha's in the season 4 episode "Coula, Woulda, Shoulda"
Ron Rifkin
He played Julian Fisher, one of Carrie's editors at Vogue in the season 4 episode "A Vogue Idea".
Candice Bergen
She played Enid Frick, Carrie's editor at Vogue. She first appeared in the season 4 episode "A Vogue Idea". She then appeared in one episode in season 5, one in season 6, and in the first movie.
Amy Sedaris
She played Courtney Masterson, one of Carrie's publishers for her first book. She first appeared in the season 5 epsiode "Unoriginal Sin". She appeared in two other season 5 epiodes and one episode in season 6.
Molly Shannon
She played Lily Martin, one of Carrie's publishers for her first book. She first appeared in the season 5 episode "Unoriginal Sin" and then appeared in two other season 5 episodes.
Anne Meara
She played Mary Brady, Steve's mom and was introduced in the season 5 episode "Unoriginal Sin". She appeared through several episodes and her last appearance on the show was in the season 6 series finale "An American Girl in Paris: Part Deux".
Heather Graham
She played herself in the season 5 episode "Critical Condition".
Nathan Lane
He played Bobby Fine, an old friend of Carrie's, in the season 5 episode "I Love a Charade".
Jennifer Coolidge
She played Victoria, an old friend of the girls', in the season 6 episode "The Perfect Present".
Tatum O'Neal
She played Kyra, one of Carrie's old friends, in the season 6 episode "A Woman's Right to Shoes".
Linda Evangelista
She played a saleswoman at Manolo Blahnik's in the season 6 episode "A Woman's Right to Shoes".
David Duchovny
He played Jeremy, Carrie's old high school boyfriend in the season 6 episode "Boy, Interrupted".
Geri Halliwell
She played Phoebe, a friend of Samantha's, in the season 6 episode "Boy Interrupted".
Julia Sweeney
She played Sister Anne Marie, a nun Samantha meets at a doctor's office, in the season 6 episode "Cath-38".
Kristen Johnston
She played Lexi Featherston, an old friend of Carrie's, in the season 6 episode "Splat!".
Gilles Marini
He played Dante, Samantha's hot L.A. neighbor in the first Sex and the City Movie.
Liza Minnelli
She played herself in the second Sex and the City Movie.
Miley Cyrus
She played herself in the second Sex and the City movie.
Penélope Cruz
She played Carmen Garcia Carrion, a woman Mr. Big meets at Smith's movie premiere in the second Sex and the City movie.