Yellowjacket

Darren Cross a.k.a Yellowjacket is the main antagonist of the 2015 Marvel superhero movie Ant-Man. He used to be Hank Pym's former assistant until he forced him out of his own company and took Pym's place as CEO. Since then, he's been planning to revolutionize the future of warfare and espionage with an advanced weaponized version of the Ant-Man Suit: codenamed the Yellowjacket.

He is portrayed by actor Corey Stoll.