6. SOLO
Rachel goes on her first mission while her family is placed in the witness protection program for their safety. Meanwhile APO set up a trap using Janos Vak as bait which they hope will capture Dean, and they set Rachel the task of bring him in.
7. FAIT ACCOMPLI
Sydney and APO attempt to discover whom Gordon Dean is working for and what their end game is. Meanwhile, when the group claiming to have a cure for daughter Nadia continues to play mind games with him, Sloane struggles for control.
8. BOB
Rachel is called on a mission when a Micropulse bomb explodes on a train. APO believes this explosion can lead to information about Prophet Five. Rachel is asked to go to Brazil and bug Basarov's computer but she runs into Sark in the process who seems to be doing exactly as she is.
9. THE HORIZON
Sydney teams up with Vaughn after being kidnapped and being placed in a hypnotic state. What Sydney doesn't know is that the kidnapper is a very familiar face with an obscure interest in her unborn child.
10. S.O.S.
The entire APO gang is trapped inside the CIA offices and Weiss saves them. However, Weiss will not be returning to APO, he will just be helping the others on a mission to obtain information regarding Sydney.
| Jennifer Garner | Sydney Bristow |
| Ron Rifkin | Arvin Sloane |
| Carl Lumbly | Marcus Dixon |
| Kevin Weisman | Marshall Flinkman |
| Rachel Nichols | Rachel Gibson |
| Élodie Bouchez | Renée Rienne |
| Balthazar Getty | Thomas Grace |
| Victor Garber | Jack Bristow |
| Mía Maestro | Nadia Santos |
| Tyrees Allen | Gordon Dean |
| Amy Acker | Kelly Peyton |
| Ron Bottitta | Janos Vak |
| Darcy Shean | Sales Clerk |
| Purva Bedi | Fiancée |
| Boyuen | General |
| Trevor Duke | Eric |
| Jordan Claire Green | Nicole |
| Sathya Jesudasson | Fiancée's Mother |
| Kaye Kittrell | Mom |
| Emil Lin | Embassy Guard #1 |
| Vanna Salviati | Armenian Woman |
| Ian Patrick Williams | Dad |
| Angus Macfadyen | Joseph Ehrmann |
| Jay Huguley | Dr. Peter Marks |
| Keone Young | Professor Choy |
| Alex Ball | Delivery Man |
| Lorenzo Caccialanza | Chancellor |
| Ali Dean | Arab Sheik |
| Carl Gilliard | Agent #1 |
| David Anders | Julian Sark |
| Caroline Goodall | Elizabeth Powell |
| Ntare Mwine | Benjamin Masari |
| François Guétary | Joseph Vachon |
| Pamela Kosh | Helen |
| Diana Perez | Clerk |
| Michael Phenicie | Lukas Basarov |
| Oleg Vidov | laborer |
| Jacob Witkin | Politician |
| Patrick Bauchau | Aldo Desantis |
| Michael Massee | Dr. Burris |
| Kathe Mazur | Doctor Lynn |
| Michael Vartan | Agent Michael Vaughn |
| Lena Olin | Irina Derevko |
| Dominic Comperatore | Italian Doctor |
| Evan Helmuth | Man in a Suit |
| Mark Kelly | Agent #1 |
| Elisa Leonetti | Audio Tech |
| Natsuko Ohama | Noodle vendor |
| Greg Grunberg | Eric Weiss |
| John Aylward | Jeffrey Davenport |
| Cate Cohen | Tour Guide |
| James Handy | CIA Director Arthur Devlin |
| Charlie Mattera | Security Guard |
| Alan Polonsky | Technician |
| Emmanuel Todorov | Guard |
| Perry Wolberg | Allen Korman |
| Michael Yavnieli | Suited Agent |
| Jeffrey Bell | Executive Producer |
| Jesse Alexander | Executive Producer |
| Jeff Pinkner | Executive Producer |
| Ken Olin | Executive Producer |
| J. J. Abrams | Executive Producer |
| Donald Thorin, Jr. | Director of Photography |
| Heidi Scharfe | Film Editor |
| Michael Giacchino | Composer |
| Frank D. Menges | production sound mixer |
| Andy D'Addario | Sound Re-Recording Mixer |
| Lisle Houston Engle | Sound Re-Recording Mixer |
| Tom DeGorter | Supervising Sound Editor |
| Cecele de Stefano | Production Designer |
| Ray Yamagata | Art Director |
| Anthony Miller | Film Editor |
| Douglas Axtell | production sound mixer |
| Bing Sokolsky | Director of Photography |
| Tom McQuade | Film Editor |
