Henry "Hank" Pym is a superhero scientist in the Marvel Universe who has adopted many superhero identities including Ant-Man, Giant-Man, Goliath, Yellowjacket, and the Wasp (the name usually taken by his wife Janet van Dyne) to name a few, who has the power to talk to ants through his helmet, and can alter his size. Most recently, he and Ultron, his archnemesis, merged into a single entity.