Natalie Portman Nina Sayers / The Swan Queen Mila Kunis Lily / The Black Swan Vincent Cassel Thomas Leroy / The Gentleman Barbara Hershey Erica Sayers / The Queen Winona Ryder Beth Macintyre / The Dying Swan Benjamin Millepied David Moreau / The Prince Ksenia Solo Veronica / Little Swan Kristina Anapau Galina / Little Swan Janet Montgomery Madeline / Little Swan Sebastian Stan Andrew / Suitor Toby Hemingway Tom / Suitor Sergio Torrado Sergio / Rothbart Mark Margolis Mr. Fithian / Patron Tina Sloan Mrs. Fithian / Patron Abraham Aronofsky Mr. Stein / Patron Marcia Jean Kurtz Costumer Georgina Shaun O'Hagan Stage Manager Sebastian Chris Gartin Sexy Waiter Scott Deborah Offner Administrator Susie Stanley B. Herman Uncle Hank Kurt Froman Understudy for Siegfried Marty Krzywonos Conductor Leslie Lyles Nurse John Epperson Jaded Piano Player Arkadiy Figlin Piano Player Tim Fain Violin Player Sarah Lane Lady in the Lane Patrick Heusinger Rich Gent Sarah Hay Corps De Ballet Gina Artese Corps De Ballet Anne Bergstedt Jordanova Dancer (uncredited) Natalie Portman Nina Sayers / The Swan Queen Mila Kunis Lily / The Black Swan Vincent Cassel Thomas Leroy / The Gentleman Barbara Hershey Erica Sayers / The Queen Winona Ryder Beth Macintyre / The Dying Swan Benjamin Millepied David Moreau / The Prince Ksenia Solo Veronica / Little Swan Kristina Anapau Galina / Little Swan Janet Montgomery Madeline / Little Swan Sebastian Stan Andrew / Suitor Toby Hemingway Tom / Suitor Sergio Torrado Sergio / Rothbart Mark Margolis Mr. Fithian / Patron Tina Sloan Mrs. Fithian / Patron Abraham Aronofsky Mr. Stein / Patron Marcia Jean Kurtz Costumer Georgina Shaun O'Hagan Stage Manager Sebastian Chris Gartin Sexy Waiter Scott Deborah Offner Administrator Susie Stanley B. Herman Uncle Hank Kurt Froman Understudy for Siegfried Marty Krzywonos Conductor Leslie Lyles Nurse John Epperson Jaded Piano Player Arkadiy Figlin Piano Player Tim Fain Violin Player Sarah Lane Lady in the Lane Patrick Heusinger Rich Gent Sarah Hay Corps De Ballet Gina Artese Corps De Ballet Anne Bergstedt Jordanova Dancer (uncredited)