Mento is Steve Dayton. He is a superhero.He builds a helmet to enhance his mental abilities. This is an attempt on Dayton's part to impress Elasti-Girl of the Doom Patrol. Although his arrogant manner annoys the male field members of the team, he is successful, and Mento and Elasti-Girl are married. They soon adopt Garfield Logan.Steve Dayton wears a helmet of his own invention that amplifies his own latent psychic powers. While wearing the helmet, he has the powers of telepathy, telekinesis, intangibility, and limited mind control.