Jennifer Gardener ("Sydney Bristow")

Jennifer Garner was born in Houston and raised in West Virginia. Her mother was an English teacher and her father was a chemical engineer. Jennifer's original aspirations were towards ballet and chemistry; however, New York and acting eventually beckoned. Jennifer began acting in television movies before moving on to feature films such as "Pearl Harbor," "Deconstructing Harry," and "Dude, Where's My Car?" She came to mainstream attention when she played the main role of Sydney Bristow on the spy series, "Alias." She snagged the role, thanks to creator J.J. Abrams, who has previously cast her in the WB Drama "Felicity."

Victor Garber ("Jonathan 'Jack' Donahue Bristow")

One of Victor Garber's most notable film roles to date is his charismatic performance as the architect of the ill-fated ship in "Titanic," starring Leonardo DiCaprio and Kate Winslet. Also on the big screen he performed opposite Goldie Hawn in "The First Wives Club" and Tom Hanks in "Sleepless in Seattle." Garber's numerous television credits include: Richard Benjamin's "Laughter on the 23rd Floor"; the ABC miniseries "Life with Judy Garland: Me and My Shadows"; the role of Daddy Warbucks in ABC's musical version of "Annie," with Kathy Bates, Alan Cumming and Alicia Morton; "Invisible Child," opposite Rita Wilson; "External Affairs"; and the role of Inspector Philip Millard in the Criminal Instinct Mysteries "Love And Murder," "Deadly Appearance," "The Wandering Soul Murders" and "A Colder Kind Of Death," based on the novels by Gail Bowen. His episodic work includes guest-starring roles on the popular series "The Outer Limits" and "Law & Order," and a recurring role on the long running series "E.N.G." Garber was nominated for Emmy Awards for Outstanding Supporting Actor in a Miniseries or a Movie for his role in the ABC miniseries, "Life with Judy Garland: Me and My Shadows," and Outstanding Guest Actor in a Comedy Series for "Frasier." Garber's stage performances are legendary. He has earned four Tony nominations for his work on "Damn Yankees," "Lend Me A Tenor," "Deathtrap" and "Little Me." Most recently he performed in the workshop of Sondheim's "Wiseguys," with Nathan Lane, which was directed by Sam Mendes, and with Alan Alda and Alfred Molina in the Tony Award-winning "Art," which moved to Los Angeles following its successful six-month run at Broadway's Royale Theatre.His numerous stage credits also include "Arcadia," "The Devil's Disciple," "Noises Off" and "Sweeney Todd." Garber began acting at the age of 10 in children's productions at the Grand Theatre in his hometown of London, Ontario, Canada. At 16 he moved to Toronto, where he joined the singing group The Sugar Shoppe which were featured on the Ed Sullivan and Johnny Carson shows. One of his first film roles was for director George Bloomfield in CBC's "Paradise Lost." Soon after, he landed the role of the hippie-Messiah in the Toronto production of "Godspell," a role he would later reprise in the musical film version. In 2001, he joined the cast of ABC's spy drama Alias, a role which he continues now in its fifth season.

Ron Rifkin ("Arvin Sloane")

Ron Rifkin received a 1998 Tony Award for Best Supporting Actor for the Broadway revival of "Cabaret." His recent theatre credits include David Hirson's "Wrong Mountain," Arthur Miller's "Broken Glass," Turgenev's "Month in the Country" and Neil Simon's "Proposals." Rifkin originated the role of Isaac Geldhart in the Jon Robin Baitz play, "Substance of Fire," in which he won the Obie, Drama Desk, Lucille Lortel and Drama-Logue awards for Best Actor. The following year, he performed in Baitz's "Three Hotels," for which he received a second Lucille Lortel award and Drama Desk nomination. Rifkin's film credits include "Boiler Room," "Keeping the Faith," "The Negotiator," "L.A. Confidential," the film adaptation of "Substance of Fire," Woody Allen's "Husbands and Wives" and "Manhattan Murder Mystery," "Last Summer in the Hamptons," "Wolf," "JFK," "The Sting II," "The Big Fix," "The Sunshine Boys" and "Silent Running." On television, Rifkin has appeared in numerous made-for-television movies and miniseries, including "Flowers for Algernon," "Norma Jean and Marilyn," "The Sunset Gang," "Concealed Enemies," "Buying a Landslide," "Evergreen," "The Winds of War" and "Dress Gray." He starred in the series, "One Day at a Time" and "The Trials of Rosie O'Neill"; and guest starred on "ER," "Law & Order," "Falcon Crest," "Soap," "Hill Street Blues" and "The Outer Limits," in which he received a Cable ACE nomination. Rifkin has also been seen in the television film, "Deliberate Intent," opposite Timothy Hutton; and in "Light Up the Sky" at the Williamstown Theatre Festival."Last Summer in the Hamptons," "Wolf," "JFK," "The Sting II," "The Big Fix," "The Sunshine Boys" and "Silent Running." On television, Rifkin has appeared in numerous made-for-television movies and miniseries, including "Flowers for Algernon," "Norma Jean and Marilyn," "The Sunset Gang," "Concealed Enemies," "Buying a Landslide," "Evergreen," "The Winds of War" and "Dress Gray." He starred in the series, "One Day at a Time" and "The Trials of Rosie O'Neill"; and guest starred on "ER," "Law & Order," "Falcon Crest," "Soap," "Hill Street Blues" and "The Outer Limits," in which he received a Cable ACE nomination. Rifkin has also been seen in the television film, "Deliberate Intent," opposite Timothy Hutton; and in "Light Up the Sky" at the Williamstown Theatre Festival. He also appeared in several episodes of "Nero Wolfe," with Timothy Hutton directing. Other film projects for 2001 include starring roles in "Dragonfly" with Kevin Costner, "The Majestic" with Jim Carrey and "Sum of All Fears" with Ben Affleck and Morgan Freeman.

Michael Vartan ("Michael Vaughn")

Mia Maestro ("Nadia Santos")

Mia originally trained to be a classical vocalist, moving to Berlin when she was 18 to receive special training. While there, she began studying acting. She landed parts in many films, including 'Timecode' and 'Frida.' Eventually she got a break when she got the part of spy Nadia Santos on the action series, 'Alias.'

Carl Lumbly ("Marcus R. Dixon")

The son of Jamaican immigrants, Carl Lumbly started his career in Minnesota as a journalist, working for the 3M company in public relations, writing freelance and penning for the Associated Press. While on an assignment to do a story on Dudley Riggs' Brave New Workshop Theatre, fate was on Lumbly's side, and he ended up being cast in one of the productions. He stayed there for two years doing improvisational comedy. Lumbly then moved to San Francisco, where he met and worked with actor Danny Glover in a production of "Sizwe Bansi is Dead" by Athol Fugard. The production brought the two actors to Los Angeles on a Cal Arts Council Tour, where they ended up doing "The Island," another Fugard play, at the Matrix Theatre. An acclaimed veteran of the stage, Lumbly has been working steadily ever since, appearing in such films as "Escape from Alcatraz," "Caveman," "The Adventures of Buckaroo Banzai Across the 8th Dimension," "Judgment in Berlin," "The Bedroom Window," "Everybody's All American," "To Sleep with Anger," "Pacific Heights," "South Central," "How Stella Got Her Groove Back" and "Men of Honor." He also starred in the film, "Just a Dream," which was directed by his friend, Danny Glover, for Showtime. On television, Lumbly starred in the series, "Cagney & Lacey," ABC's "Going to Extremes" and "M.A.N.T.I.S."; had recurring roles on "ER" and "EZ Streets"; and guest starred on "The X-Files," "The West Wing," "Family Law" and "Kate Brasher." His numerous made-for-television movies and miniseries include "The Chicago Conspiracy Trial," "Tribeca: The Box," "Out of Darkness," "Cagney & Lacey: The Return," "America's Dream Reunion," "The Ditchdigger's Daughter," "Buffalo Soldiers," for which he earned a NAACP Image Award nomination for Outstanding Lead Actor; "Oprah Winfrey Presents The Wedding," "The Color of Friendship" and "Built for Speed: The Little Richard Story." Lumbly received Ace Award nominations for his work in "Nightjohn" and "On Promised Land," both for the Disney Channel. Lumbly is married to actress Vonetta McGee and has one son. In his spare time, he enjoys gardening, writing and playing with his two dogs.

Kevin Weisman ("Marshall J. Flinkman")

Kevin Weisman was born and raised in Los Angeles. He received a BA from UCLA's prestigious School of Theatre/Film/Television and also studied at New York's Circle in the Square Theatre. He is a founding member of the award-winning and critically acclaimed Buffalo Nights Theatre Company and appeared in numerous plays at their resident space, the Powerhouse Theatre in Santa Monica, including Arthur Schnitzler's "Anatol," Jean Giraudoux's "Apollo of Bellac," which received a Garland for Production of the Year and seven LA Weekly award nominations; "Madman and the Nun," "The Firebugs," "Suburban Motel," Ethan Lipton's "Hope on the Range," Arthur Miller's "Incident at Vichy," Oscar Wilde's "Salome" and the West Coast Premiere of Jonathon Marc Sherman's "Sophistry." His other theatre credits include "'Tis Pity She's a Whore," "The Greeks," which received the LA Weekly 1999 Production of the Year; and "The Goldoni Trilogy." Weisman's television credits include recurring roles on "Felicity," "Roswell," "Buffy the Vampire Slayer" and "First Years." He has guest starred on "The X-Files," "Gideon's Crossing," "Frasier," "ER," "Just Shoot Me" and "The Drew Carey Show"; and appeared in the television film, "Beverly Hills Family Robinson." His film credits include "Gone in Sixty Seconds," "Kat and Allison," the 1998 Slamdance Audience Award winning "Man of the Century"; as well as "Robbers" and "Buying the Cow." Weisman also produces and acts in the 2001 feature film, "The Illusion," directed by Michael Goorjian.