New Series: Unforgettable (CBS), premieres Tuesday, Sept. 20 at 10 p.m. Where You've Seen Her Before:Without a Trace, 2002-09 (CBS)
Viewers know Poppy Montgomery best as Special Agent Samantha Spade from the CBS procedural Wthout a Trace, a character she played for seven seasons Now she's back on television again as Carrie Wells in the TV series based on J. Robert Lennon's short story The Rememberer, about a woman who can remembereverything.
New Series:Hart of Dixie (The CW); premieres Monday, Sept. 26 at 9 p.m. Where You've Seen Her Before:The O.C., 2002-09 (Fox); Chuck, 2007 (NBC); How I Met Your Mother, 2010 (CBS)
Rachel Bilson is ready to trade in the sun for the stethoscope. After captivating audiences in Josh Schwartz's The O.C. as Seth Cohen's crush Summer Roberts, the actress is back this fall on the Southern drama, Hart of Dixie. She will play Dr. Zoe Hart, a young doctor who moves to the remote Alabama town of Bluebell after discovering the lack of jobs available in New York City.
New Series: Terra Nova (Fox); premieres Monday, Sept. 26 at 8 p.m. Where You've Seen Him Before:Life on Mars, 2008-09 (ABC)
Irish actor Jason O'Mara was last seen on ABC's short-lived American remake of the British series, Life on Mars, portraying Det. Sam Tyler. Though only 17 episodes were shown, O'Mara went on to land the lead role of the Steven Spielberg-backed (and highly ambitious) dinosaur drama, Terra Nova, in the summer following the cancellation of Life on Mars. O'Mara will take on the reins as patriarch Jim Shannon, who -- along with his family -- travel 85 million years back in time to prehistoric Earth.
New Series: The Secret Circle (The CW); premieres Thursday, Sept. 15 at 9 p.m. Where You've Seen Her Before:Life Unexpected, 2010-11 (The CW); Swingtown, 2008 (CBS)
It has only been a couple of months since Life Unexpected was axed in its second season, but Britt Robertson already has another gig lined up -- and it is backed by the people behind The Vampire Diaries. In The Secret Circle, based on another L.J. Smith property, Robertson plays newcomer Cassie Blake, who discovers shortly after moving to Chance Harbor that she is a witch -- and joins a secret coven.
New Series: Up All Night (NBC); premieres Wednesday, Sept. 14 at 8 p.m. Where You've Seen Her Before:Samantha Who?, 2007-09 (ABC); Jesse, 1998-2000 (NBC); Married With Children, 1987-97 (Fox)
Christina Applegate returns to the small screen playing a character that may be more true to life than ever. A new parent at the age of 39, her character, Reagan, on the new NBC comedy Up All Night falls under the same category of "starting a family later in life." Applegate is no stranger to the entertainment business; she's been working in film and television since she was a child.
New Series:Up All Night (NBC); premieres Wednesday, Sept. 14 at 8 p.m. Where You've Seen Him Before: Running Wilde, 2010-11 (Fox); Arrested Development, 2003-06 (Fox)
Best known for playing "G.O.B." on Fox's cult comedy Arrested Development, Will Arnett is back with a more realistic (and toned down) character, a stay-at-home dad, on Up All Night. Arnett hasn't exactly been away from television. Aside from starring on the short-lived Running Wilde comedy, he has guest starred on 30 Rock, The Office and Parks and Recreation.
New Series: Up All Night (NBC); premieres Wednesday, Sept. 14 at 8 p.m. Where You've Seen Her Before: Saturday Night Live, 2000-07 (NBC)
Former Saturday Night Live regular Maya Rudolph takes on the role of daytime talk show host in her new series, created by SNL writer Emily Spivey. Unlike her co-stars, Rudolph's character is a childless high-maintenance, Oprah Winfrey wannabe, that puts the pressure on Christina Applegate's Reagan (a producer) on a daily basis. Will there be special SNL guest stars coming on? One can hope.
New Series: Free Agents (NBC); premieres Wednesday, Sept. 14 at 8:30 p.m. Where You've Seen Him Before:The Simpsons (voice), 1989-present (Fox); Huff, 2004-06 (Showtime)
Hank Azaria reunites with his Showtime boss, Bob Greenblatt, with the half-hour workplace comedy, Free Agents, a U.S. remake of the British series. It's a different turn than on his outing on Huff, which saw Azaria play a psychiatrist whose life is changed when a patient commits suicide. On Free Agents, he plays a recently divorced PR executive who hooks up with his co-worker, who is trying to get over the death of her fiance.
New Series: I Hate My Teenage Daughter (Fox); premieres Wednesday, Nov. 30 at 9:30 p.m. Where You've Seen Her Before: My Name Is Earl, 2005-09 (NBC)
Best known for playing Joy Turner on NBC's My Name Is Earl,Jaime Pressly is moving on to broader comedy with I Hate My Teenage Daughter. Playing a mother who "hates" her teenage daughter (as the title suggests), the actress is leaving the "trailer trash" character she portrayed for four seasons for a different kind of comedy.
New Series: Charlie's Angels (ABC); premieres Thursday, Sept. 22 at 8 p.m. Where You've Seen Her Before:Friday Night Lights, 2006-09 (NBC/DirecTV); Parenthood, 2010-11 (NBC)
Lyla Garrity is taking taking Miami by storm. After playing the loyal girlfriend, Lyla Garrity, to the Dillon Panthers' star QB Jason Street for three seasons on Friday Night Lights, Minka Kelly has graduated into kicking butt and taking names. As one-third of the new Charlie's Angels reboot, Kelly's Eve French is a street racer with a mysterious past.
Nick Wechsler, Revenge
New Series:Revenge (ABC); premieres Wednesday, Sept. 21 at 10 p.m. Where You've Seen Him Before: Roswell, 1999-2002 (WB/UPN)
When Revenge premieres this fall, there may be one face that may jump out. Nick Wechsler, who has done guest starring stints on CBS' Chase, Fox's Past Life and FX's It's Always Sunny in Philadelphia, last appeared on the WB/UPN series as Kyle Valenti. On the ABC drama, set in the Hamptons, Wechsler portrays Jack Porter, who has worked with his father at the Stowaway Tavern -- but when he sees Emily (Emily Van Camp) return, he senses there's something oddly familiar about her.
New Series:Last Man Standing (ABC); premieres Tuesday, Oct. 11 at 8 p.m. Where You've Seen Him Before: Home Improvement, 1991-99 (Fox)
Tim Allen, best known for starring on Home Improvement during the 1990s, is back on the small screen with ABC's Last Man Standing, about a man who lives in a world dominated by women.
New Series: Once Upon a Time (ABC); premieres Sunday, Oct. 23 at 8 p.m. Where You've Seen Her Before:Big Love, 2006-11 (HBO); Ed, 2001-03 (NBC)
With a healthy film career, Ginnifer Goodwin -- last seen on Big Love as Margene Heffman -- is trying her hand at the television fairytale, literally. Starring as the iconic character Snow White (and Sister Mary Margaret Blanchard), Goodwin's new character is far from the role that catapulted her to the top of small-screen success.
Emily Van Camp, Revenge
New Series:Revenge (ABC); premieres Wednesday, Sept. 21 at 10 p.m. Where You've Seen Her Before:Brothers & Sisters, 2007-10 (ABC); Everwood, 2002-06 (WB)
Barely 25 years old and Emily Van Camp already has a resume many would be envious of. Breaking through as Amy Abbott on the WB drama, Everwood, she solidified her standing as one of the busiest young actresses working in television when she joined family drama Brothers & Sisters as Rebecca Harper. Now, she gets top billing in Revenge, a show based on a woman who seeks revenge on those who destroyed her family.
New Series: Suburgatory (Fox); premieres Wednesday, Sept. 28 at 8:30 p.m. Where You've Seen Him Before: Law & Order, 2007-10 (NBC); Six Feet Under, 2001-05 (HBO)
Jeremy Sisto returns with a witty, half-hour comedy Suburgatory, revolving around a teenager who -- along with her recently divorced father -- move to the suburbs for a better life. But of course, that takes some getting used to. Sisto, who last starred on the NBC procedural Law & Order and the Alan Ball-created Six Feet Under, showcases his comedic chops.
Mary Lynn Rajskub
New Series: How to Be a Gentleman (CBS); premieres Thursday, Sept. 29 at 8:30 p.m. Where You've Seen Her Before:24, 2003-10 (Fox)
No more headsets and helping Jack Bauer race against the clock, 24 veteran Mary Lynn Rajskub is taking the funny to a new extreme on How to Be a Gentleman. Based on the nonfiction book by the same name, the CBS series chronicles the friendship between an uptight columnist and his carefree trainer.
New Series: Person of Interest (CBS); premieres Thursday, Sept. 22 at 9 p.m. Where You've Seen Him Before:Lost, 2006-10 (ABC)
It's no secret everyone knows Michael Emerson as the enigmatic Ben Linus on Lost, but he's ready to carve out a new identity, this time on J.J. Abrams' Person of Interest. Emerson plays a mysterious billionaire who has developed a computer program that predicts the identity of a person connected to a violent crime that takes place in the near future, but of course, there are limitations and complications.
Sarah Michelle Gellar
New Series:Ringer (The CW); premieres Tuesday, Sept. 13 at 9 p.m. Where You've Seen Her Before: Buffy the Vampire Slayer, 1996-2003 (UPN/WB)
Buffy the Vampire Slayer star Sarah Michelle Gellar took off a few years after giving birth to her first child, but she's ready to take the TV industry by storm again with Ringer, originally developed for CBS. Not only will Gellar be playing two roles (twin sisters Bridget and Siobhan), she'll be discovering the characters along with the viewers. If the pilot is any indication, viewers will be in for quite a ride.