Byron made his debut appearance in Ancient Family Matters! together with his son, Roark. It was revealed Byron had once been the Gym Leader of Oreburgh and had left his family to become the Gym Leader of Canalave as he was more interested in fossils, leaving his former position to Roark. Byron battles his son for a short time before the match got interrupted by Team Rocket. It was later revealed that Byron still cared for his son as he kept the fossil Roark had found as a child with him ever since.
Byron is obsessed with digging and fossils. Because of such, he has a great admiration for those who craft eligant tunnels. When his fossils were stolen by Team Rocket in Ancient Family Matters!, Byron was too busy admiring the hole they dug (which came from three regions worth of experiance doing so) into the building to notice.
In Dealing With Defensive Types!, Ash had his gym battle with Byron, defeating him and earning a Mine Badge.
Byron used Bronzor in his Gym battle against Ash. It has very high special defense, as seen by the fact that it was able to withstand several fire-type attacks. After a long battle against Ash's Chimchar, it lost to Chimchar's powerful Flame Wheel.
Steelix is a very strong opponent capable of take several blow without too much damage. Its Screech attack stopped Ash's Buizel in its tracks, but after using several strategic Dig attacks, Chimchar was able to defeat it.
Bastiodon was first seen battling Roark's Rampardos. It was later used to battle Ash in his gym battle against Byron. It has very strong defense and easily defeated the weakened Chimchar. After a long battle against Ash's Gliscor, it lost to its Fire Fang.