Transformers: The Darkest Hour

Transformers: The Darkest Hour is a movie that will take place immediately after Transformers: Rise of the Unicronians, directed by Steven Spielberg. In Part of a new trilogy confirmed by producer Don Murphy

Plot
Optimus Prime is dead, and Galvatron and his Decepticons have forced the Autobots into retreat. Only by recruiting new allies, and the rise of a Chosen One, can the galaxy be saved.

Humans

 * Daniel "Buster" Witwicky: Paired with Bumblebee, Buster becomes a lead human in the Autobot Alliance.
 * Sari Sumdac: Buster's childhood sweetheart. Speaks with a Southern accent. Her partner is Twirl.
 * Chip Chase: Paired with Hot Rod, Chip becomes mobile with his own Exo-Suit, and uses his aptitude for the defense of the Galaxy.
 * Roxi Lans: Sari's best friend and Speakers' partner. She is punk rocker that met Speakers and became friends. She sees him as a big brother and befriends with Pedales.
 * Marissa Faireborn (played by Natalie Portman): Earth Defense Command or EDC leader.
 * Sam Witwicky

Autobots
In disarray after their leader and many of their warriors are killed, the Autobots prepare a last stand against the Darkness.
 * Springer: (voiced by Brian Bloom): Autobot leader until near the end of the movie: transforms into an AgustaWestland Apache helicopter; is an "old school" leader who finds himself overwhelmed by incredible odds.
 * Hot Rod/Rodimus Pime (voiced by Neal McDonohugh): Transforms into a 2012 Chevrolet Corvette Grand Sport. Travels to planet Chaar to bring back lost Autobots and Decepticons for the battle against Unicron. Kills Galvatron on Earth, then takes the battle to Unicron. Is nearly killed by Nemesis Prime, until the matrix anoints him Prime, and gives him power to use the Star Saber (The Autobots' version of King Arthur's Excalibur) which was once wielded by Prima, leader of the original Seven Primes. Primus (spark now freed from Unicron's prison) informs him he is a decendant of Prima himself, and Optimus' son. Using both the Star Saber, the Matrix of Leadership, and the Key of Vector Sigma, the anointed Rodimus Prime manages to redeem Optimus Prime, destroy both Galvatron and Unicron forever, and begin the process of rebuilding Cybertron on Mars. Now transformes into a Tiller-Ladder Fire Truck.
 * Bumblebee: "Buster" Witwicky's guardian and becomes a chief leader of the Autobots. He is always see with Twirl and dating her. Retains his 2012 Chevrolet Camaro form.
 * Mirage (voiced by Francesco Quinn): Still one of the best spies the Autobots have. Retains his Ferrari 458 Italia mode. Called "Dino" in the film.
 * Perceptor (voiced by Bumper Robinson): The new Autobot scientist, Wheeljack/Que's old friend. Transformers into a minivan packed with science equipment. He is called "Urk" in the film and always replies "Did I do that?" or "I don't have takes, i'm driving home." He ressembles and based on Steven "Steve" Urkel.
 * Kup (voiced by Edward Asner): Still keeping the younger 'bots on the right course. Transforms into a 1953 Ford F-100 pickup.
 * Moonracer (voiced by Michelle Rodriguez): Bumblebee's best friend and Hot Rod's love interest. She speaks in Latin Accents and now serve as weapons inventor.
 * Wreckers: Mechanics and commando team.
 * Roadbuster (voiced by Ron Bottitta): Springer's second-in-command. Transforms into Dale Earnhardt, Jr.'s NASCAR Sprint Cup Series Chevrolet Impala #88 AMP Energy/National Guard stock car.
 * Leadfoot (voiced by John DiMaggio): Transforms into Juan Pablo Montoya's NASCAR Sprint Cup Series Chevrolet Impala #42 Target stock car.
 * Topspin (voiced by Robin Atkin Downes): Transforms into Jimmie Johnson's NASCAR Sprint Cup Series Chevrolet Impala #48 Lowe's/Kobalt stock car.
 * Road Rage: Transforms into pink NASCAR Cherolet Impala #73 car. She tallest of team and toughest. Road Rage is sweetest Autobot, get her mad and she pound heavy dents in you. She is Speakers' wife and very clingy to him. In the film, she is called "Pedales" and seem to be one of the hottest female Autobots, right after Twirl.
 * Defectors: Former Decepticons that switch sides for freedom or don't have the urge destory things.
 * Blaster: A human's mind trap in Decepticon Drone body with Soudwave's Sonic Blasters hands. Same sizes as Jazz and has fondness of "good music" as G1 version. He serves as comic relief and hangs with his wife, Pedales. In the film, he is called "Speakers" and transforms into a light blue Techno-Organic Gorosaurus-like dinosaur. He still retain a tail in robot mode and wears sunglasses given to him by Leadfoot to him tell whos an Autobot member. He is Roxi Lans' guardian and replaces Bumblebee's role as youngester.
 * Twirl (voiced by Ariana Grande): A former blue eyed Decepticon with no anger in her, serving as Autobot Medic. She is very optimistic and very hyper with a bipolar disorder. Also,werid obbession of adoring cute things like puppies. She is skilled of being a medic and Twirl takes Ratchet's role. She is also, Bumblebee's love interest and her partner is Sari. She and Bumblebee are secretly dating each other, which Fairborne knows that they sneak out with Speakers and Pedales.
 * Air Raid: A former Seeker that switch sides. He is impulsive and brave, he take on Decepticons up close. He loves to dance in the air and known to be a show off, he is one of Speakers and Bumblebee's friend. In the climax, he defeated six Sweeps and Lugnut with plasma grenade. He transforms into a white McDonnell Douglas F/A-18 Hornet with red stripes. In Robot Mode, he wears goggle-like pieces on his forehead and carries arm swords on his wrists.
 * Haywire (voiced by Jerry Trainor): A friend of Wheelie and Autobot Spy. He is werid, random and very smart getting out of places. Sadden by lost of the original Dinobots, he start hanging with Perceptor. transforms into a red/green futuristic toy racecar.
 * Targetmasters: Autobots who fled the war long ago, and with the help of the Nebulons have built Chaar into a peaceful world.
 * Alpha Trion (voiced by Richard McGonagle): Former Autobot leader who led the Exiles to Chaar, fed up with the war. He keeps the Star Saber safe until Hot Rod's arrival.
 * Ultra Magnus (voiced by Xander Berkeley): Prime's brother who leads the Targetmasters to earth to backup the shrinking Autobots. Transforms into a Peterbilt 379 and armed car carrier trailer.
 * Blurr (voiced by Roger Rose): Transforms into a Formula-1 racecar. He replaces Sideswipe and always dodging enemies attacks.
 * Cliffjumper (voiced by Nathan Fillion): Tough as nails though small. Transforms into a Red 2012 Ford Fiesta. He is Bumblebee's oldest friend and act like his big brother.
 * Dinobots: They are the second wave of Dinobots. Despite the death of original Dinobots, they have a race of them living on Chaar.
 * Gridjaw (voiced by Johnny Yong Bosch): Transforming into a Techno-Organic Allosaurus. New leader of the Dinobots. Like his father Grimlock, he can fight anyone with no fear. He is young and brash, learning to work with Hot Rod and later, respecting him.
 * Slash (voiced by Dee Bradely Baker): Transforming into a Techno-Organic Microraptor, Slash is second-in-command of the Dinobots. Also, serves as the Dinobots' aerial recon scout.
 * Stomp (voiced by Tara Strong): Transforming into a Techno-Organic Brontosaurus. She taller than Pedales and serve as the Dinobots' wrecker.
 * Omega Supreme (voiced by Mark Hamill): Transforms into a giant Autobot spaceship similar to the Ark and the Xantium, called the Axalon. One of the Great Guardians of Cybertron, the Omega Sentinels. Unearthed by the Autobots in the outback of Australia some time after the battle in Chicago, Omega Supreme is appointed Guardian of the new Autobot City.
 * Primus (voiced by John DiMaggio): The "god" of the Autobots, his spark and essence were contained within the Key of Vector Sigma, until Unicron's heralds stole it and gave it to him. Was released when Hot Rod fought Nemesis Prime, and anointed Hot Rod as Rodimus Prime. He helps the transformation of Mars into New Cybertron when Unicron is destroyed.

Villains

 * Unicron (voiced by Clancy Brown): Universal Dominator and Chaos Bringer whose alternate mode is a planetoid similar to Cybertron, Unicron is a being from another dimension who came with his minions, the Unicronians through a wormhole from Cybertron's destruction. He prepares to consume all the Cybertronians in the Solar System; along with the system itself. Is destroyed by Rodimus Prime.

Decepticons
Since Cybertron and Megatron's destruction, the Decepticons have been in disaray, until Unicron offers himself to be their new home. Soon after Megatron returns as Galvatron, they plan to use the Dark Energon inside Unicron to revive all the dead Decepticons on earth so they'll have an army of the undead for Unicron.
 * Galvatron﻿ (voiced by Richard McGonagle): Made from the dead corpses of Megatronus Prime the Fallen, Sentinel Prime and Megatron through Unicron's power, Galvatron takes his rightful place as Decepticon Leader. He's alt-mode is slightly similar to Megatron's jet mode in the 2007 film. Because he's body was made from three Decepticons, he's got the minds of the Fallen, Sentinel and Megatron in his head and they are in constant battle for domination. Because of this, it causes Galvatron to go insane, blasting minor Decepticons within range of his new Fusion Cannon. Is destroyed by Hot Rod, and then revived and redeemed by Rodimus Prime.
 * Cyclonus/Starscream (voiced by John DiMaggio): New second-in-command, Starscream pretend to follow Galvatron's commands as Cyclonus. Galvatron notices that Cyclonus was killed by Grimlock and return with a head that look like Starscream. In the end of the film, he finally got some Dark Energon and seen flying off to Chaar, claiming he will return with his own forces. After killing Scourge, he lead the Team Traitor. Transforms into a fighter craft similar to that of a Sukhoi Su-47 fighter jet.
 * Scourge (voiced by Miguel Ferrer): Galvatron's implacable tracker and leader of his own cadre of huntsmen, the Sweeps, whom he sends to retrieve the following dead Decepticon corpses for Unicron to create a new leader for them. Transforms into a hovercraft similar to that of a Lockheed F-117 Nighthawk.
 * Team Traitor: Scourge leads these Decepticons to overthrow and overpower Galvatron.
 * Octane: The Decepticon Triple-Changer traitor. Transforms into a jet and an oil tanker. In the end of the film, left the team and joined the Autobots.
 * Rumble: A orange version of Rampage with Long Haul's legs.
 * Buzzsaw: A former member of the Dreads. He speaks in Cybertronian and a Crowbar-look alike with a buzz saw left hand.
 * Sweeps: Decepticons similar to Scourge in appearance, they are sent to retrieve the dead corpses of Megatron, the Fallen and Sentinel Prime for Unicron.
 * Predacons: Unicron has created these as the new force of terror throughout the Galaxy. They are nearly indefeatable, and when combined as Predaking, their power is behind only Unicron and (during his saner moments) Galvatron. They have taken oversized versions of Earth creatures, and see the Dinobots as their chief nemeses.
 * Razorclaw: Leader of the Predacons, transforms into an Lion. He seems calm and waits for his prey to come to him. In Robot Mode, he is a yellow/black version of Crankcase from DOTM movie.
 * Tigertron: Predacon second in command; transforms into a Tiger and has less control and more of a thirst for destruction than his leader. He replaces Strika.
 * Terrordive: Predacon scout, transforms into an Falcon. She replaces Divebomb and acts like Laserbeak in Beast Mode.
 * Headstrong: An especially aggressive Predacon who transforms into a Crocodile. He has a short temper and attacks his foes head on.
 * Tantrum: Another especially aggressive Predacon, transforms into a Chimpanzee. In Beast Mode, he can move in great speed and thrash anyone that gets in his way.
 * Seekers: All of them transform into fighter jets.
 * Slipstream: Leader of the Seekers. She is bitter by Galvatron to led this team and has snobbish behavior. She is killed by Moonracer.
 * Thundercracker (voiced by Larry Cedar): Seekers' Second in Command. He is a slim blue version of Starscream. He is killed by Springer.
 * Skywarp (voiced by James Horan): Decepticon Prankster. He gain the abillity to teleport given by Unicron without his Transwarp belt.
 * Frequency: Decepticon Hacker. In earlier of the film, she left the Seekers for Air Raid and fell in love with him.
 * Lugnut (voiced by Robin Atkin Downes): Decepticon Berseker. Loyal to Megatron/Galvatron and tend to serve as his bodyguard. And Speaks in a Monsterious English Accent. He is killed by Air Raid, along with some Sweeps.
 * Nemesis Prime (voiced by Clancy Brown): Optimus' spark is tortured and corrupted by Unicron, and transforms into the dark and evil Nemesis Prime. Retains his trailer which he uses for his Super Mode as well as his Peterbilt 379 18-wheeler mode. Is redeemed by Rodimus Prime's use of the Star Saber and Key of Vector Sigma, and revived as Optimus Maximus.

Quotes:
Unicron: "I am the first and the last. No being can stand in my way, no creature can prevent what I have determined to be, no God can subject me to his will."

Primus: "Your time is now! Only one of pure spark can use the ultimate power; only you are worthy of this. Now, arise, Rodimus Prime!"

''Rodimus Prime: "Now... light our darkest hour!" (Places the matrix into the hilt of the Star Saber, and plunges into the core of Unicron)''

Galvatron: "There can be, Only ONE!!"

''Ultra Magnus: "It's over, Cyclonus! Give up!"

''Cyclonus: "You give up, Autobot!"