- Role: Protagonist
- Role: Protagonist
Calvin is first seen in the cafe, along with his brother Micah. They're watching the news, and Calvin gets the idea to go look for whatever might've been responsible for capsizing the G.U.N battleship. Out loud, he expresses his desire to go to the ocean, which is overheard by Sephtis the Eagle.
Calvin then asks if he and Micah can join Sephtis, Tina, and White on their trek to the ocean, to which the trio agrees. After introductions, to which Sephtis and Calvin seem to hit it off well, the five head towards the pier.
As Tiamat had prepared to attack the duo, they were swiftly rescued by unknown squadron team, who extracted them inside the tilt-rotor aircraft. However, the damage inflicted by Tiamat earlier resulted in serious damage, nearly plummeting towards certain doom. While Calvin came out unscathed, his younger brother suffered a minor injury to his ankle; Ajax ended up with a concussion, and the rest of his crew were injured as well.
- Role: Antagonist
He first appears alongside his brother, the two of them wandering the forest. They end up finding Orbot and Cubot, as well as some Badniks, trying to find one of the Elemental Orbs at the behest of Dr. Eggman. Orbot ends up seeing them both, but isn't hostile towards them, and simply explains his situation to the boys (to which Calvin acts rather bratty).
However, Calvin ends up sympathizing with Orbot somewhat after hearing about how him and Cubot do all the work for Eggman but get none of the credit or appreciation. He and Micah eventually decide to help Orbot and Cubot in their mission to secure the Orbs for Eggman, if only to try and help the robotic duo escape from a life of servitude to the mad doctor.
Once he and his brother were inside the Eggman Fleet, they were given a tour by both Orbot and Cubot, though when Orbot provided them a prison cell, Cubot became jealous and both he and Orbot began scuffling at each other before being taken away by the two guards. As a result, the duo were now able to explore the Eggman Fleet unhindered.