| Jon Hamm | Don Draper |
| Elisabeth Moss | Peggy Olson |
| Vincent Kartheiser | Pete Campbell |
| January Jones | Betty Francis
(credit only) |
| Christina Hendricks | Joan Harris |
| Aaron Staton | Ken Cosgrove |
| Rich Sommer | Harry Crane |
| Kiernan Shipka | Sally Draper
(credit only) |
| Jessica Paré | Megan Draper
(credit only) |
| Kevin Rahm | Ted Chaough |
| Christopher Stanley | Henry Francis
(credit only) |
| Jay R. Ferguson | Stan Rizzo |
| Mason Vale Cotton | Bobby Draper
(credit only) |
| John Slattery | Roger Sterling |
| Maggie Siff | Rachel Katz |
| Elizabeth Reaser | Diana Baur |
| Trevor Einhorn | John Mathis |
| Rebecca Creskoff | Barbara Katz |
| Sola Bamis | Shirley |
| Ray Wise | Ed Baxter |
| Jon Manfrellotti | Art Garten |
| Jay Seals | Marvin Woodman |
| Larisa Oleynik | Cynthia Cosgrove |
| Greg Cromer | Dennis Ford |
| Joshua LeBar | Will Scully |
| Paul Johansson | Ferg Donnelly |
| Devon Gummersall | Stevie Wollcott |
| Nick Toren | Tilden Katz |
| Stephanie Drake | Meredith |
| Kirstin Ford | Tricia |
| Rainey Qualley | Cindy |
| Maliabeth Johnson | Audrey |
| Carmela Corbett | Charlotte |
| Stevie Nelson | Lori |
| Dale Waddington | Lillian Baxter |
| Alison Martin | Viola |
| Sam Buchanan | Libby |
| Alice Borcean | SCP Lady
(uncredited) |
| Alan Charlston | David
(uncredited) |
| Nicole George | Model
(uncredited) |
| Holly Houk | Model
(uncredited) |
| Richard Nixon | Self
(archive footage) (uncredited) |
| Cheyenne Nugent | SC&P Secretary
(uncredited) |
| Natalie Pelletier | Casting Girl
(uncredited) |
| Hudson Phillips | SC&P Employee
(uncredited) |
| Dylan Ryan | Man in Cafe
(uncredited) |
| Ryan Self | Erickson Guy
(uncredited) |
| Jaynee Silvers | Model
(uncredited) |
| Erin St. James | Time Life Girl
(uncredited) |