Referred specifically as "The Steve" by the teenagers, he is considered the leader of the Teen Ninjas. Maybe teens altogether. His first and only appearance was in Operation: T.R.E.A.T.Y., where he and Numbuh 362 were to sign the "Don't mess with us, we don't mess with you!" treaty between kids and teens. His clueless persona was seen briefly until he unveiled the plan to betray the Kids Next Door using a specialized piece of rock music to get rid of them, showing a more deviant side worthy of a leader.
After Chad Dickson and Numbuh 1 accidentally destroy the boombox that threatened the kids, the Steve tried to initiate a battle with Numbuh 1 for destroying it, only to hand him over to Chad who wanted to fight him.
During the riot with the fudge explosion by Numbuh 48 Flavors caused the venue of the treaty to collapse, the Steve ordered an immediate evacuation and sang during the credits of how they were all saved by wearing parachutes.
His attire consists of an olive green pair of jeans with a dark jacket tied around it, a red shirt with the sleeves rolled up, a pair of sneakers and black sunglasses. His hair is stylized and thick.
- It is revealed that he belongs to a band and sung about the aftermath of the treaty during the credits.
- His appearance plays the stereotype of cool teenage rebels who are sought out in social cliques of teenagehood. His voice could also be a play on the Fonz from Happy Days or Danny Zuko from Grease, who were notorious for being popular cool teen characters in mainstream media.
- This same voice is also Boog on Nickelodeon's Fanboy and Chum Chum.