Meteor School

The Meteor School is a group of orphans fostered by the former Chief of Smart Brain, Luther, & were schooled under their teacher Mr. Buonarroti. These students became known as the Meteorites. Shortly before the series started they attended a reunion, with all students almost killed & resurrected as Smart Brain's "hope", with only Bentley having memories of the night intact. They each were sent the three Rider Gears: Maria obtaining Phi & the bulk under Mr. Buonarroti obtaining Chi. The members other than Maria & Bentley include:

Eric Walker

 * Main article: Eric Walker

Eric Walker is a relatively cowardly member of Meteor School who would rather forget about Orphnochs & go back to living a normal life. He would become the default wearer of the Delta Gear & fight as Kamen Rider Delta despite his cowardice. After Magdalene was hit by a truck retrieving the Delta case he had thrown into the street, he resolved to stop running & fight alongside the others.

Others

 * Qiana Sanders:  A "cat-tongue" much like Nathan, Qiana briefly wore the Delta Gear. Eventually she found her way to the Pond Dry Cleaning shop & worked part-time there. She waited to see what kind of person Nathan was before deciding to hand over the Delta Gear to him. Unfortunately, she was mortally wounded by Summerfield before she could.
 * Magdalene Brownlow: Eric Walker's friend, former classmate & co-worker in the orphanage where Abner Bell (Orphnoch King) stayed.
 * Bertrand Christianson: After Attaway's death, he tried to put on the Chi belt, but couldn't out of fear because of what happened to the other users. After the Delta belt was discovered & he used it, he believed the belt was rightfully his because of the belt's side effect. Not only that, he also gained some power from the belt. Along with Neville, he kidnapped Maria to lure out Summerfield to get the belt. Mortally wounded by Summerfield.