He is the egotistical but caring father of {Melody Fushiguro}, stepfather of Leo Dooley ,and the adoptive father/uncle of the bionic superhumans Adam, Bree, and Chase, whom he raises and trains in his secret lab. A genius and co-founder of Davenport Industries, he is known for his arrogance, love of technology, and deep, if sometimes strained, affection for his family.

known as the younger brother of Donald Davenport, uncle to Guest and the biological father of bionic teens Adam, Bree, and Chase, and the creator of the android Marcus. Initially an antagonist seeking revenge on his brother, he reforms in Season 3, becoming a hero and joining the Davenport family, though he retains his genius-level intellect and morally ambiguous traits.

She is the wife of billionaire inventor Donald Davenport, mother to Leo Dooley, and stepmother to Guest and the bionic teenagers Adam, Bree, and Chase. A news reporter by profession, she is known for being sassy, loving, and supportive, often acting as a mother figure to the bionic teens while navigating the chaos of their secret lives.

who starts as a normal, nerdy kid and becomes a "Mission Specialist" for his bionic step-siblings Guest, Adam, Bree, and Chase, eventually gaining his own bionic abilities, including a laser sphere and a bionic arm and leg. He is the stepson of billionaire inventor Donald Davenport and is known for his intelligence, loyalty, and tendency to get into trouble, often using technology to compensate for his initial lack of physical strength.

known as the super-intelligent, bionic brother with powers like molecularkinesis, force fields, and levitation, who often serves as the team's leader and strategist. He is the biological son of Douglas Davenport and the adoptive son of Donald and Tasha Davenport. He has a crush on Guest.