Transformers: EarthSpark is an American animated action comedy television series based on the Transformers toyline by Hasbro. It was developed by Dale Malinowski, Ant Ward and Nicole Dubuc for the streaming service Paramount+ and sister cable network Nickelodeon. The series is produced by Entertainment One in partnership with Nickelodeon Animation Studio, with animation services provided by Icon Creative Studio.
The first season (consisting of 26 episodes) premiered on November 11, 2022. The second season, produced by Hasbro Entertainment, (consisting of 10 episodes) premiered on June 7, 2024. The third season (consisting of 8 episodes) premiered on October 25, 2024. The fourth and final season, which consisted of two specials, premiered on December 5, 2025.
Premise Fifteen years after the space bridge to Cybertron is destroyed, ending the civil war between the Autobots and the Decepticons, the Malto family relocates from Philadelphia to the small town of Witwicky, Pennsylvania. There, siblings Robby and Mo Malto witness the birth of a new breed of Earth-born Transformers called Terrans, who become emotionally bonded to the two via special cyber-sleeves on their arms. Now adopted into the family and being mentored by Bumblebee, the Terrans work with the Autobots, the former Decepticon leader Megatron, the organization G.H.O.S.T., and the children to protect their new life from the remaining rogue Decepticons and other villains while finding their place in the world.
Season 2 starts one year later following the defeat of Mandroid. A group of Decepticons led by Starscream goes rogue sometime after the shattering of the Emberstone. It is now up to the Terrans, the Autobots, and the humans to collect the shards before the Decepticons do. This leads to the creation of the Chaos Terrans and the discovery of secrets about Witwicky itself.
Season 3 starts right where Season 2 left off. The stakes get higher when the Quintessons get involved and threaten both the Maltos and Earth.
Season 4 starts right where Season 3 left off. A terrible threat affects the entire universe, with the appearance of a powerful enemy from Cybertron, leading the Terrans, the Autobots and Maltos to their final battle.
Characters Humans Robby Malto (voiced by Sydney Mikayla in the TV series, Joshua Evans in Expedition) is a 13-year-old boy (14 in Season 2) who gladly adjusted to his new life after being forced to move to a small town. Morgan Violet "Mo" Malto (voiced by Zion Broadnax in the TV series, Tunisia Hardison in Expedition) is Robby's optimistic 9-year-old sister (10 in Season 2). Dorothy "Dot" Malto (voiced by Benni Latham) is Robby and Mo's mother and Alex's wife, who is a park ranger, ex-soldier and former member of G.H.O.S.T. who lost her lower right leg in the Great Cybertronian War and wears a prosthestic leg. Dr. Alex Malto (portrayed by Jon Jon Briones in the TV series, Alex Christian in Expedition) is Robby and Mo's father and Dot's husband who is a college professor with a Ph.D. in Cybertronian History. Dr. Meridian / Mandroid (voiced by Diedrich Bader in the TV series, Bill Rogers in Expedition) is a mad scientist and roboticist who seeks to destroy all Cybertronians. His real name is Dr. Meridian and was given the nickname "Mandroid" against his wishes by Thrash. Mandroid had lost his original right arm in the Cybertronian war back when he used to work for G.H.O.S.T. and begins replacing his body parts with those of the Transformers he captures like Hardtop's right arm and Brawl's left arm. Mandroid was later approached by Croft where she allowed him to use one of the G.H.O.S.T. facilities. In "The Last Hope" Pt. 1, Mandroid recruits two Sharkticons to his side and later kills Croft. In "The Last Hope" Pt. 2, Mandroid activated a super-weapon to shut down all Cybertronian lifeforms and died due to the side effect of energon infusion making him vulnerable to the weapon while falsely believing that he won (he readily accepted his timely death and glady moved on afterwards). His victory was short-lived as Robby and Mo Malto used their cyber-sleeves to revive all the Autobots, Decepticons, and Terrans. Mandroid managed to survive as a head where he lies to Olive that the Decepticons have banished Croft to Cybertron. His head gets free and takes control of Starscream up to the pont where his head is removed from Starscream by Megatron. Both Mandroid's head and Starscream are returned to their cells. The Arachnamechs are the spider-like creations of Mandroid. Mr. Smelt (voiced by Daran Norris) is a teacher at Witwicky Charter School. Fairmaestro (voiced by Richard Ayoade) is a collector of Cybertronian technologies and artifacts, whom he keeps in his tent at the carnival. Though Fairmaestro is defeated by the Maltos, he gets away when Agent Schloder botches his arrest on him. In "The Great Escape", Fairmaestro opens an escape room as part of his revenge on the Maltos. He is defeated when he fails to solve his own escape room. Olive Croft (voiced by Ryan Bartley) is the daughter of Karen Croft and niece of Jon Schloder. Hoagie (voiced by Jonny Cruz) is a friend of Olive.
G.H.O.S.T. Short for Global Hazard Ordinance Strike Team, this human organization originally had the goal of rebuilding the relationship between humans and the Cybertronians. By "The Last Hope" Pt. 2, the organization was disbanded because of Karen Croft's death and Mandroid's evil attitudes.
Executive Agent Karen Croft (voiced by Kari Wahlgren) is a former high-ranking member of G.H.O.S.T. She is shown to be obsessed with keeping the rogue Decepticons from causing havoc where she even went far as to secretly be behind an illegal Bot Brawl and secretly allow Mandroid to access some of the Decepticon prisoners in one of the G.H.O.S.T. facilities as seen in "Home" Pt. 2. Croft's treachery is revealed in "Stowed Away, Stowaways". Karen is subsequently killed by Mandroid in "The Last Hope" Pt. 1 where he used his super-weapon to disintegrate Croft due to the device he gave her had poisoned her body with Energon. Special Agent Jon "No H" Schloder (voiced by Marc Evan Jackson) is a former member of G.H.O.S.T. and the brother of Agent Croft. While he is familiar with some of the Autobots and Megatron, he does get suspicious when it comes to the sighting of the Terran Transformers who are in the Malto family's possession and the fact that Bumblebee faked his death. He eventually figures out about the Terrans and that Bumblebee is still alive and also readily helps them defeat Mandroid. After G.H.O.S.T. was disbanded, Schloder attempted to arrest Fairmaestro only to botch the arrest. Agent Bala (voiced by Krizia Bajos) is a former member of G.H.O.S.T. Agent Bagheri (voiced by Kathreen Khavari) is a former member of G.H.O.S.T. Kwan (voiced by Sherry Cola) is a former G.H.O.S.T. cadet. She is named and modeled after series storyboarder Alex Kwan. Conway (voiced by Jason Marsden) is a former G.H.O.S.T. cadet. He is named and modeled after series storyboarder J.J. Conway. Rosato (voiced by Kaitlyn Robrock) is a former G.H.O.S.T. cadet. She is named and modeled after series storyboarder Jordan Rosato.
Terrans Twitch Malto (voiced by Kathreen Khavari in the TV series, Farah Rishi in Expedition) is an inquisitive and competitive Terran Transformer and Robby's partner, as well as the leader of the Terrans. She transforms into a flying Cybertronian drone and her weapons are a pair of laser blades. Thrash Malto (voiced by Zeno Robinson in the TV series, Chris Long in Expedition) is a fun-loving and impulsive Terran Transformer and Mo's partner. Hs transforms into a motorcycle with a sidecar and his weapons are a shield and a throwing disk. Hashtag Malto (voiced by Stephanie Lemelin in the TV series, Lauren Weisman in Expedition) is an excitable media-savvy second-generation Terran Transformer. In the show's first season, she transforms into a G.H.O.S.T. surveillance van. While she does not have a weapon, she makes up for it with the ability to hack into electronic systems via wireless networks. In the show's second season, she upgrades her alt mode to a pickup truck due to her viewing her previous vehicle mode obsolete. Jawbreaker Malto (voiced by Cyrus Arnold in the TV series, Bill Rogers in Expedition) is a sensitive second-generation Terran Transformer. He transforms into a Stygimoloch (now referred to as a younger Pachycephalosaurus), which makes him the Dinobot of the group. Though he does not have a weapon, he makes up for it with brute strength and durability. Nightshade Malto (voiced by Z Infante in the TV series, Aaron Landon in Expedition) is a creative and scientifically minded second-generation Terran Transformer. Nightshade is the first character in the Transformers franchise to be identified as non-binary, using singular they pronouns. They transform into a Northern hawk-owl and their weapons are a pair of greaves on their forearms that function as blades and dart launchers while also having clawed fingers. Aftermath (voiced by Flea of Red Hot Chili Peppers) is a Chaos Terran who was created by a corrupted shard from the Emberstone and can transform into a tow truck. Despite being deactivated at the end of "Witwicky, Part 2”, Aftermath was later reactivated in "Judgment Day, Part 2” to help fight and defeat the Quintessons. Spitfire (voiced by Zelda Williams) is a Chaos Terran who was created by a corrupted shard from the Emberstone and shares a strong resemblance to Twitch. Like her, she also transforms into a flying Cybertronian drone. Despite being deactivated at the end of "Witwicky, Part 2”, Spitfire was later reactivated in "Judgment Day, Part 2” to help fight and defeat the Quintessons. Terratronus (voiced by Claudia Black) is the first Terran and a Titan who is the progeny of Quintus Prime where she guards his legacy. Her inert body was covered in mounds of soil that later became the site of Witwicky. She helps the Autobots, the Maltos, and the Terrans defeat the Quintessons in the two-part season 3 finale "Judgement Day".
Autobots Optimus Prime (voiced by Alan Tudyk in the TV series, Bill Rogers in Expedition) is the leader of the Autobots who transforms into a semi-trailer truck. He is one of the Cybertronians to be brought back to life by Robby and Mo's cyber-sleeves in the episode, "The Last Hope, Part 2". He helps the Autobots, the Maltos, and Terratronus defeat the Quintessons in the season 3 finale "Judgment Day". He also helps his team win the final battle in the series finale. Bumblebee (voiced by Danny Pudi in the TV series, Joe Zieja in Expedition) is a former Autobot scout and current veteran in hiding who becomes the Terrans' mentor and transforms into a yellow sports car with black racing stripes, though it was shown he originally scanned a similarly colored Compact car. He is among the Cybertronians to be restored to life by Robby and Mo Malto's cyber-sleeves in "The Last Hope" Pt. 2. He also helps his team defeat the Quintessons in the two-part season 3 finale "Judgment Day". He also helps assist his team during the series finale to win the final battle. Elita-1 (voiced by Cissy Jones) is the Autobots' second-in-command who transforms into an all-terrain SUV. She is one of the Cybertronians to be brought back to life by Robby and Mo Malto's cyber-sleeves in "The Last Hope" Pt. 2. Elita-1 later helps the Autobots, Terratronus, and the Maltos defeat the Quintessons in the two-part season 3 finale, "Judgment Day". She also successfully helps her team win the final battle of the series finale.