Teenager who becomes humanity's key ally in the Autobot-Decepticon war.
Their romantic relationship remains central while they face escalating danger together.
Mikaela is identified as Sam's girlfriend, and she helps him survive the Decepticon attacks and search for the Matrix.
Sam and Optimus are mutually dependent allies whose actions determine each other's survival.
Optimus defends Sam during the battle with Megatron, and Sam later uses the Matrix to resurrect Optimus.
Megatron targets Sam as the unwilling bearer of crucial AllSpark knowledge.
Megatron seeks Sam because the Cybertronian symbols in Sam's mind may reveal a new Energon source, and Megatron later kills him.
The Fallen treats Sam as the key obstacle to activating the Star Harvester.
The Fallen demands that Sam be handed over, and Sam ultimately uses the Matrix to help defeat the Fallen's plan.
Simmons provides Sam with knowledge that advances the search for the Matrix.
Sam seeks out Simmons for information about Transformers and hidden Seekers on Earth.
Alice directly endangers Sam during the college sequence.
Alice attacks Sam while posing as a college student, revealing herself as a Decepticon Pretender.
Explore the full interactive character relationship map of Transformers: Revenge of the Fallen
Related entry on Wikidata (Q6118000), public domain (CC0).