Sydney Bristow thought SD-6 was a branch of the CIA, she thought she was fighting for the good of mankind. It's not until she reveals her secret to her fiance that she realises the truth. Her fiance is murdered to keep the secret and Sydney slowly falls down the rabbit hole in to the role as a double agent, working with her previously estranged father who reveals himself to be a long term double agent.
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Ron Rifkin | Arvin Slone | 105 eps. |
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Carl Lumbly | Marcus Dixon | 105 eps. |
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Victor Garber | Jack Bristow | 105 eps. |
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Jennifer Garner | Sydney Bristow | 105 eps. |
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Kevin Weisman | Marshall Flinkman | 105 eps. |
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Michael Vartan | Michael Vaughn | 96 eps. |
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Greg Grunberg | Eric Weiss | 68 eps. |
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David Anders | Julian Sark | 56 eps. |
| Merrin Dungey | Francie Calfo | 48 eps. | |
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Bradley Cooper | Will Tippin | 47 eps. |
| 1 | Truth Be Told | 09/30/2001 | |
| 2 | So It Begins | 10/07/2001 | |
| 3 | Parity | 10/14/2001 | |
| 4 | A Broken Heart | 10/21/2001 | |
| 5 | Doppelganger | 10/28/2001 | |
| 6 | Reckoning | 11/18/2001 | |
| 7 | Color Blind | 11/25/2001 | |
| 8 | Time Will Tell | 12/02/2001 | |
| 9 | Mea Culpa | 12/09/2001 | |
| 10 | Spirit | 12/16/2001 | |
| 11 | The Confession | 01/06/2002 | |
| 12 | The Box: Part 1 | 01/20/2002 | |
| 13 | The Box: Part 2 | 02/10/2002 | |
| 14 | The Coup | 02/24/2002 | |
| 15 | Page 47 | 03/03/2002 | |
| 16 | The Prophecy | 03/10/2002 | |
| 17 | Q & A | 03/17/2002 | |
| 18 | Masquerade | 04/07/2002 | |
| 19 | Snowman | 04/14/2002 | |
| 20 | The Solution | 04/21/2002 | |
| 21 | Rendezvous | 05/05/2002 | |
| 22 | Almost Thirty Years | 05/12/2002 |
| Name | Alias |
| Status | Ended |
| Date of 1st Airing | Sept. 30, 2001 |
| Date of Last Airing | May 22, 2006 |
| Show Type | |
| Original Air Day | Sunday |
| Original Air Time | 9 |
| Show Length | 60 |
| Network(s) | |
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