Dr. Lucy Suzuki is a human scientist specializing in unconventional theories about extraterrestrial life and planetary structure. She maintains that Earth is hollow, containing a secondary internal sun and hosting alien civilizations, citing ancient artifacts as evidence of extraterrestrial visitation. Her scientific peers largely dismiss her theories, leading her to characterize detractors as closed-minded individuals requiring childlike belief. Her research gains unexpected validation with the discovery of a subterranean cavern system in the Arctic, aligning with her predictions. This cavern houses a massive Decepticon army, partially confirming her assertions about alien presence, though the structure is a natural cave formation. Her Arctic fieldwork involves analyzing anomalous energy readings and collaborating with an archaeological team. During this expedition, she witnesses a newly unearthed Transformer scan her vehicle before fleeing. Initial encounters with children Coby, Bud, and Lori occur when she discovers them hiding in her laboratory closet. Instead of reporting them, she shares her artifact collection, inadvertently aiding their search for an object linked to Vector Prime. She later assists them by purchasing cold-weather gear in Alaska and recruits them as research assistants, attempting to elicit information about extraterrestrial activity. Her first direct encounter with Transformers follows a Decepticon attack by Starscream and Mudflap; Autobot Scattorshot intervenes to protect her and the children, solidifying her alliance with the Autobots. Government involvement arises when Colonel Mike Franklin investigates her work and Transformers activity. Initially distrustful, she demands access to classified documents in exchange for her knowledge and briefly suspects the Autobots of hostile intentions. This skepticism dissipates after she orchestrates the escape of captive Mini-Cons and helps rescue Coby, Lori, and Bud from military custody, subsequently relocating them to Autobot headquarters with Hot Shot and Landmine. She participates in critical events, including Starscream's global assault and the Autobots' retrieval of the Omega Lock. During one battle, Optimus Prime shields her from a missile strike by Starscream. Her relationship with Colonel Franklin evolves from professional collaboration to personal commitment. They jointly oversee human-Autobot operations during Megatron's incursions and later attempt to dissuade Coby and Lori from interplanetary travel on safety grounds, though their objections are overruled by Autobot leadership. Following the resolution of the Unicron Singularity threat, she proposes to Franklin during a starship boarding operation. Years later, they have a child and attend Coby and Lori's wedding. Her physical appearance includes black hair extending to chest length and black eyes. She drives a Bugatti Veyron.