<P> As Cybertron anchors itself to Earth, Megatron, Nitro Zeus, and Barricade deliver the staff to Quintessa, who begins draining the life force of Earth from Unicron . Burton and the British military intervene, and Megatron shoots Burton, who dies with Cogman by his side . The Autobots arrive to join the TRF, Cade, Viviane, Izabella, and Sqweeks . They land on Cybertron and battle the Decepticons and Quintessa's minions, the Infernocons . After Optimus kills the Infernocons, the Autobots reach the chamber where the staff and Quintessa are . Optimus defeats Megatron by kicking him through the chamber's wall, sending him flying to Earth, while Bumblebee kills Nitro Zeus . Together, Optimus and Bumblebee seemingly kill Quintessa . Viviane removes the staff, stopping Cybertron's destruction of Earth but leaving both worlds connected . Optimus declares that humans and Transformers must now work together to rebuild their worlds and sends a message calling any surviving Autobots to come home . </P> <P> In a mid-credits scene, scientists inspect one of Unicron's horns in a desert . Quintessa, who survived and is now disguised as a human, arrives and offers them a way to destroy Unicron . </P> <Ul> <Li> Mark Wahlberg as Cade Yeager, a single father and inventor, who helped the Autobots during the events of Age of Extinction . </Li> <Li> Josh Duhamel as William Lennox, a former NEST commander and U.S. Army Ranger captain, who partnered with the Autobots prior to the events of Age of Extinction, and now a U.S. Army Colonel and reluctant member of the Transformer Reaction Force (TRF). </Li> <Li> Stanley Tucci as Merlin, King Arthur's wizard and Viviane's ancestor . Tucci was originally reported to be reprising his role as Joshua Joyce from Age of Extinction . </Li> <Li> Anthony Hopkins as Sir Edmund Burton, 12th Earl of Folgan, an astronomer and historian who knows about the history of the Transformers on Earth . </Li> <Li> Laura Haddock as Viviane Wembly, a Professor of English Literature at the University of Oxford and a polo player, who turns out to be a descendant of Merlin . Minti Gorne portrays a younger Viviane . </Li> <Li> Isabela Moner as Izabella, a street-wise tomboy who was orphaned with Sqweeks and Canopy, her only friends, until meeting Cade . </Li> <Li> Jerrod Carmichael as Jimmy, a young man from South Dakota whom Cade hired through a want ad . </Li> <Li> Santiago Cabrera as Santos, a former Delta Force operative and commander of the TRF, who seeks to eradicate every Transformer and their human allies regardless of faction . </Li> <Li> John Turturro as Seymour Simmons, a former government agent with Sector Seven and NEST turned successful writer who hides out in Cuba, and was allied with the Autobots prior to the events of Age of Extinction . </Li> <Li> Glenn Morshower as General Morshower, the director of NEST in Revenge of the Fallen and Dark of the Moon who now supervises TRF operations . </Li> <Li> Liam Garrigan as King Arthur, the legendary knight who first fought with the Knights of Iacon . </Li> </Ul> <Li> Mark Wahlberg as Cade Yeager, a single father and inventor, who helped the Autobots during the events of Age of Extinction . </Li>

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