Marcus Davenport is the main antagonist of the Disney XD series Lab Rats. Although he originally appeared to be friendly and harmless, he was revealed to actually be a ruthless bully, who is intent on kidnapping Adam, Bree and Chase for his creator, Douglas Davenport, who wants them. Marcus was ultimately betrayed by his father, who left him to his death when the lair collapsed. When Marcus came back in the series finale, he sought revenge against his creator for leaving him to his death. He is portrayed by Mateus Ward.