He is portryed by Michael Taber.
While working on a work assigned by his brother, his pet dog detected something and brought him to a stone. At that time, a wandering Fury spotted the dog and tried to kill him out of annoyance until Riley took a nearby pipe and attacked Fury. The pipe hit the rock and revealed a green Energem where it turned the pipe into a Dino Saber, allowing Riley to gain the upper hand until Fury retreated.
He departed from his farm to the Amber Beach Museum, with his scooter broke in the middle of the journey and offered a ride by Shelby Watkins and Tyler Navarro in his car. They even save a man from his car via their Energems' powers followed by the discovery of an underground lab below the Amber Beach Dinosaur Museum which led them to become Power Rangers.
After their confrontation with Iceage, Riley works in the Museum, as well as a Dino Bite Cafe waiter while having the mantle to become the Green Ranger. Past, Present and Fusion
He's quiet, confident and disciplined. At only 17 years old (later 18 years old), he's a bit younger than the other Rangers, but just as fierce. Riley grew up on a ranch, but didn't fit in. Riley practiced his sword skills. Fencing is just one of the unique things about Riley, he doesn't like to get dirty, he's picky about what he eats, and he's a whiz at logic games, like chess, checkers and Rubik's cube.
- His personality is very similar to Izzy Izumi from Digimon Adventure.
- Riley is the first Green Ranger on a dinosaur-themed Power Rangers team to be apart of the core team. Tommy Oliver was a Green Ranger on a dinosaur-themed Power Rangers team, but is also a Sixth Ranger.