|Appeared in||Teen Titans: Homecoming|
Steve Dayton is the leader of Doom Patrol, Mento.
Mento and his teammates Elasti-Girl, Robot Man, and Negative Man, have continued to thwart the evil plans of The Brain and his Brotherhood of Evil from time to time. Before Beast Boy became a Teen Titan, Mento put him through the hoops and never fully regarded Beast Boy as a core member of the Doom Patrol. Their relationship was uneasy because of Mento's harsh, critical and inflexible attitude, which was the eventual reason Beast Boy quit the Doom Patrol.
When the Doom Patrol had been captured following their investigation of the Brotherhood's latest scheme, a pre-programmed messenger probe summoned Beast Boy and his new teammates, the Teen Titans, to the scene. Even though they managed to save the Doom Patrol from certain annihilation, Mento berated Beast Boy from letting the Brotherhood get away again, and in order to meet them at full fighting strength, he drafted Beast Boy back into the Patrol's ranks but refused the Titans' assitance, claiming that only the Doom Patrol was qualified enough to deal with them. However, this was what the Brain had anticipiated, and in the course of their approach to the Brotherhood's base the Patrol was worn down one by one until only Mento and Beast Boy were left. Beast Boy finally rebelled against Mento's stubborness, forcing him to reconsider his ways.
With the lost Doom Patrol members rescued by the Titans, the two teams eventually managed to defeat the Brotherhood once again, When they parted ways, Mento expressed his respects to the Titans and promised the Doom Patrol's assistance against the Brotherhood in the future.