What happens when a medical resident is turned into a zombie, complete with a hankering for brains? We find out in Veronica Mars creator Rob Thomas' new show iZombie. Plus, Community is back for its much anticipated sixth season — and with a few new students. Get the latest clips and details below.

Tonight

The Originals (8 PM, The CW)

Suspicious of where her true loyalties lie, Klaus (Joseph Morgan) invites Freya (guest star Riley Voelkel) to the compound in order to gain more insight into her past with Dahlia. After a series of strange visions, Rebekah (guest star Maisie Richardson-Sellers) begins to realize the body she's inhabiting is attempting to regain control. With Rebekah's life on the line, Marcel (Charles Michael Davis) puts his bargaining skills to the test when he turns to Vincent (Yusuf Gatewood), who may have some knowledge that could help them. Lastly, at the bayou, Jackson's (guest star Nathan Parsons) frustrations grow after Aiden (guest star Colin Woodell) questions his leadership skills.

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Tuesday

Community (Streaming, Yahoo!)

Community is back! (Yay!) For Season Six of #sixseasonsandamovie! (Yay!) Yvette Nicole Brown isn't on it any more! (Boo!) But Keith David and Paget Brewster are! (Yay! *Clink*) Let's see how this crazy thing goes.

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Powers (Streaming, PlayStation)

Wolfe (Eddie Izzard) is on a rampage within the walls of the Shaft — and the Powers division is forced to use that top-secret technology known as the Drainer in an attempt to stop him.

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The Flash (8 PM, The CW)

The Weather Wizard is in Central City and he's hoping to take out Joe. Barry warns Joe not to go after a metahuman alone, but it's not long before Joe is in hot water.

Face Off (9 PM, Syfy)

Spawn's Todd McFarlane guest judges this week when the artists have to create a super villain or super villain alter-ego — for themselves. Yep, this week, the contestants are the models.

iZombie (9 PM, The CW)

Rob Thomas, creator of Veronica Mars, adapts Chris Roberson and Michael Allred's comic book about a zombie who solves crimes. Rose McIver plays Liv, an overachieving medical resident whose life was derailed when she joined the ranks of the undead. Now she's working in the city morgue so she can get the sustenance she so desperately needs — brains.

Agents of SHIELD (9 PM, ABC)

Cal assembles a team of super villains in order to destroy SHIELD and get revenge on Coulson. Plus, May calls upon on her ex-husband (played by Blair Underwood) for help.

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Wednesday

Arrow (8 PM, The CW)

Oliver returns home to Starling City to find a new criminal menace, Michael Amar, a.k.a. Murmur. Meanwhile, Nyssa makes Laurel an offer after the two bond over their relationships with their fathers. And Thea has to come to terms with her own father.

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Supernatural (9 PM, The CW)

Dean and Sam run into Cole and learn that a Khan worm is turn men into killers. And naturally, Sam disobeys Dean's edict to stop looking for a cure for the Mark of Cain.

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CSI: Cyber (10 PM, CBS)

This week's episode is designed to make you fear your Lyft driver. A car service's dispatch software is hacked in order to target certain passengers.

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Thursday

Cartoons (5 PM, Cartoon Network)

On Steven Universe (5 PM), Steven takes Connie to Rose's Room to enact a new ending to a beloved book series. Uncle Grandpa (5:30 PM) and Belly Bag have a disagreement, so they decide to go their separate ways. Kid Flash wants to join Teen Titans Go! (6 PM), but Robin thinks he's a one-trick pony. And on Regular Show (7:30 PM), the guys want to help Party Horse pass his US History test.

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The Vampire Diaries (8 PM, The CW)

Damon and Elena get ready to rescue Damon's mother Lily from a 1903 prison world. Weird, even for a show about vampires.

Archer (10 PM, FX)

Archer and Lana travel to Wales for a romantic getaway of aiding separatists.

Dig (10 PM, USA)

Peter and Golan follow clues from Emma's diary deeper into the global conspiracy. And Debbie takes Josh on an outing beyond the compound walls.

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Vikings (10 PM, History)

The fleet returns to Kattegat to discover tragic circumstances await.

Friday

Grimm (8 PM, NBC)

When Nick and Hank deal with a murder victim whose foot is cut off, they discover the Wesen twist on a lucky rabbit's foot.

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12 Monkeys (9 PM, Syfy)

While Cassandra gets closer to the virus, an unexpected death may turn Cole and Ramse against each other.

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Helix (10 PM, Syfy)

The Abbey becomes a house of horrors as Kyle struggles with his infection and Anne begins to shape a successor to Michael.

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Saturday

The Good Witch (8 PM, Hallmark)

Cassie's mischievous cousin Abigail is back in Middleton, forcing Cassie to dish out some tough love as Sam and Grace are swept up in Abigail's spell.

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Sunday

Once Upon a Time (8 PM, ABC)

This week's episode is titled "Poor Unfortunate Souls," which means it's probably Ursula's time to shine.

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The Last Man on Earth (9 PM, Fox)

Episode descriptions for this show are light, so there are probably a few more surprises planned for Phil Miller and Tucson.

The Walking Dead (9 PM, AMC)

Rick and company are finally realizing that things inside Alexandria's walls aren't that much different from things outside, and they start to wonder if they'll ever be safe.

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