Gill is a Gundalian and a member of the Twelve Orders. Gill was a main antagonist in Super Smash Bros. Crossover. His Guardian Bakugan is Krakix. Gill is very loyal to Emperor Barodius. Gill also has an excellent student known as Airzel. Gill has utter hatred of Kazarina. Gill and Airzel were killed by Cyborg Helios when he blasted a crater beneath their feet. Mason tried to save them, but they knew this was their fate. However, they entrusted Krakix and Strikeflier to Mason before Gill let go of Mason's hand and they fell into the lava. He is revived offscreen and is reunited with Krakix. In Season 7, Gill and Airzel betray Sasuke and Mecha Sonic by killing Kazarina and freeing the villains who were disposed of. He joins the heroes afterwards. In Season 10, Gill battled against Zenet, but was defeated and hypnotized to fight for Zombie Reed's army. Gill is sent to Gundalia by Zenet after she releases him from hypnosis. He rejoins the heroes after this. Gill reappears in Season 23 to help the heroes fight Mechtavius Destroyer, but is killed and absorbed by the tyrant. However, since Drago killed Mechtavius Destroyer in the past, Gill's death never happened.