Sam Witwicky is a fictional character from the Transformers franchise, created by Hasbro. He is portrayed as a young human who becomes involved in the battle between the Autobots and Decepticons, two factions of sentient robots from the planet Cybertron. Sam is known for his bravery and resourcefulness, often finding himself in extraordinary situations. In the live-action film series directed by Michael Bay, Sam is played by actor Shia LaBeouf. His character serves as the primary human protagonist, helping the Autobots, led by Optimus Prime, to protect Earth from various threats. Sam's journey includes discovering his connection to the Transformers and facing challenges that test his courage and loyalty.