Riley O'Neil

Riley O'Neil was introduced in the first episode of the debut series, ''Ultimate Alliance. Created by Matthew Ehlert, Riley was portrayed as a the bad cop and was the rival to the cowboy theme hero Quick Draw, AKA Flint McGraw. ''O'Neil was cocky, arrogant, and hotheaded. He would easily get triggered once Flint opened his mouth.

Riley was born in New York City and grew up in a rough side of town. In the pre-reboot, he decided to become a cop to stop the various criminals he grew up watching. Within four years of being in the New York Police Department, O'Neil rose to the very top, becoming the chief of the department. In Ultimate Alliance 1, Riley and Flint's backstory were introduced. Flint robbed a bank and was on the run from the cops after he was betrayed by partner Clyde and rescued by Doctor Corsax. Riley lead the hunt for the criminal and eventually arrested him, although he was sprung free later by Miles Trainer (Velocity) and I'orl (Crescendo). His role from there died down to that of a background character, only showing up briefly until the end where he was tossed aside and exposed as being a guy with bad intentions for wanting to kill Flint after their final showdown with Captain Saturn and her invading crew.

In Ultimate Alliance 2, Riley had a side antagonist role. His relationship with Flint only worsened and it wasn't known until Riley agreed with, the unknown main villain of the Ultimate Alliance trilogy, Nebula, to obtain a great amount of power to help take out the heroes. Riley gunned down his own son, who was great friends with Flint and fellow Ultimate Alliance team member Alexa, to drag Flint out from the group. During the final moments of the second installment, Riley and Flint had their epic one-on-one match whilst Earth was, seemingly, imploding. Riley won after many heavy hits from both sides. Riley then joined his three partners, Marius, J'arl, and I'orl, in the final battle where he was defeated by Miles and tied up with everyone else as the heroes escaped. The only ones on the planet during it's implosion were Miles, Riley, J'arl, I'orl, and Marius.

In the third installment, Ultimate Alliance, Riley appears only in scenes with Flint. It's later revealed in the final episode that Riley died on Earth due to the power he received being far too great for his body to maintain and as a result, it gave out on him. Riley finally gives his goodbyes and makes peace with Flint before passing on.

In the reboot, Riley plays the role of a protagonist, main character. He becomes the head leader of the United States military and works alongside his created team of heroes, The Earth Force, to rid Earth of evil threats after discovering life outside of Earth and are attacked.