New heartthrob alert! Amell, who had recurring roles on Revenge and 1600 Penn, is now following in the footsteps of his cousin, Arrow star Stephen Amell, and stepping into a lead role on the CW. Amell will play Stephen Jameson, the leader of a group of highly evolved young people who possess superpowers and work together to fight evil. We can't help but wonder if great abs run in the family...

Beatriz, who's had memorable guest spots on Modern Family and Southland, plays Detective Rosa Diaz on Fox's new ensemble comedy starring Andy Samberg and Andre Braugher. The no-nonsense Diaz serves to counteract the goofy antics of Samberg's Det. Jake Peralta, though we're sure at some point down the line, she will also flirt with him.

Beharie, who received rave reviews for her role opposite Michael Fassbender in Shame, will play the lead in Fox's adaptation of the Washington Irving short story, Detective Abbie Archer, a tough investigator in the town of Sleepy Hollow who witnesses the gruesome murder of her mentor. The only other witness to the crime? A time-traveling Ichabod Crane (Tom Mison). We suspect they may comprise TV's hottest new crime-fighting duo.

After briefly appearing as Gunnar's lady-love Hailey on Nashville, Bennet moves into sci-fi territory on S.H.I.E.L.D.. Her character, Skye, is a free-spirited computer hacker who uses her savvy to gain the upper hand once she's recruited as an agent. Because she's a civilian, her background is mostly a mystery to the other members of S.H.I.E.L.D., but, like most viewers of the show will be, she's known to be obsessed with superheroes. Thanks to Bennet's wit and charm, Skye could become an unlikely fan favorite on the show.

Boone's had recurring roles on Blue Bloods and Law & Order: LA, but landed the lead opposite James Spader in NBC's The Blacklist. Her experience playing cops should benefit her turn as fresh-faced FBI agent Elizabeth Keen, who's targeted by the world's most wanted criminal, Red Reddington (Spader), as the only person he'll cooperate with after turning himself in to authorities. Neither the character nor the audience knows what Reddington's agenda is. Could Agent Keen be the next Clarice Starling?

Davis, who viewers might remember as Jo's abusive boyfriend Jason on Grey's Anatomy, joins the Vampire Diaries spin-off as Marcel, the protégé of Klaus (Joseph Morgan). The actor will continue to show off his bad side as the hard-partying, charismatic vampire king of New Orleans, who rules both humans and supernaturals with an iron fist. Will he be able to out-Klaus Klaus?

Private Practice fans will recognize 12-year-old Gluck as Cooper and Erica's son Mason. In ABC's Back in the Game, he'll play Danny, the son of a former softball all-star (Maggie Lawson), who moves back in with her estranged father (James Caan) after falling on hard times. Hopefully he'll skew more precious than precocious.

Glee and Awkward vet Haro stays in the teen realm as Junior Hernandez on NBC's Welcome to the Family. Haro and Ella Rae Peck star as a teenage couple who become pregnant at the end of their senior year and as a result are forced to introduce their very different families. Haro should be the perfect pick to make teen dad Junior likable and sympathetic.

The Australian actress got her start on the Aussie soap Neighbors, but crossed over to U.S. television as Cora on Teen Wolf. Kane has been tapped to play Mary, Queen of Scots for the CW's Reign, which tells the story of the monarch's early years in France. We hope she doesn't lose her head over the role.

The English-born Lowe has an extensive resume of bit roles in movies and television, but she's finally getting her time in the spotlight as Alice in the Once Upon a Time spin-off Wonderland. Given the success of OUAT, it's a big role to fill for the relative newcomer. Will audiences be willing to go down the rabbit hole with her? We think they should.

Smith is the newbie on CBS' ensemble comedy starring Kal Penn, Jerry O'Connell and Tony Shalhoub. Having guest-starred on such shows as The Mindy Project, How I Met Your Mother and 30 Rock, Smith is no stranger to network comedy. Here, he's up to the task of keeping up with the other three comedic heavy-hitters, as they play a group of divorced men living in a short-term housing complex and trying to find new love.

Young, best known as Ryan Shay on Suburgatory, makes the transition to a leading man on Fox's military comedy. The model-turned-actor is certainly easy on the eyes, but here we'll have to see how his comedy chops stand up to the likes of Geoff Stults and Chris Lowell, who play his two brothers, also enlisted in the Army and stationed at the same base.

Baker joins the class of breakout child stars for the 2013 fall TV season as Henry, the youngest member of the dysfunctional Fisher family. Told in flashbacks narrated by Jason Bateman (who voices adult Henry), Growing Up Fisher is about how the adorable Henry deals with his parents' divorce. Jenna Elfman stars as his quirky mom and J.K. Simmons plays his father, who is blind.

Buckley played a young Julian Bowers on NBC's ill-fated series Deception, and now heads to the Fox comedy based on the autobiography I Suck at Girls. He'll play Frankie Dunlevy, the teenage son of Jack (Christopher Meloni). It's likely he'll have better luck with the ladies than his on-screen father does.

Captivating newcomer Sequoyah stars as Bo, the heroine of NBC's new fantasy series from Alfonso Cuaron and J.J. Abrams. Bo is a 10-year-old girl who was born with special abilities beyond her control. The "Believers" who've raised her eventually turn to a wrongfully convicted death-row inmate named Tate (Jake McLaughlin) to protect her from people who want to use her skills for evil.

As awkward-yet-endearing Marcus, the titular "Boy" in NBC's adaptation of the Nick Hornby novel, Benjamin Stockham takes over the role played by Nicholas Hoult in the 2002 film. As in the movie, the appeal of the story hinges on whether viewers find Marcus adorable or annoying. Stockham hasn't had much luck on the small screen in the past, as an alum of the short-lived sitcoms Sons of Tucson and 1600 Penn, but we're guessing he'll have better luck this time around.

The 23-year-old Australian actress takes on the role of Clarke Walters, the heroine of the CW's new post-apocalyptic drama based on the book series by Kass Morgan. Clarke is one of 100 juvenile delinquents sent back to Earth after a nuclear war with the hopes of repopulating the planet, and is the voice of reason of the bunch. All eyes will be on Taylor to see if the on-screen Clarke lives up to readers' expectations of the character.