Darren Cross (Earth-1600)

"You tried to hide Pym's suit from me? Now, it's gonna blow up in your face and destroy everyone you care about."

- Yellowjacket Darren Cross (a.k.a. Yellowjacket) is the CEO of Cross Technological Enterprises and a rival of Hank Pym. He created the Yellowjacket suit which used the Pym Particles.