As protector of Gateway Cavern, the King is beloved by all his people (though probably not for the reasons he thinks). A showman to the end, he likes to dazzle opponents with flashy slugs that make a big bang!
The King of Sling makes his debut in "The World Beneath Our Feet Part 2", where he goes up against Trixie in the qualifiers. He loses to her after becoming too cocky. He is seen again dueling Eli Shane in the Unbeatable Master's dojo. He was also seen in the episode focusing on him.
He is seen to compete in the winnowing at episode The Unbeatable Master. He made a Cameo appearance in Slugterra: Ghoul From Beyond, trying to defend his Home Cavern from being taken over by the Dark Slinger's Henchman & their Ghouls, as well as trying to stop them from stealing all the residential Fandango Slugs, but he was found by the Shane Gang, defeated & piled underneath broken pieces of buildings, when they spotted him and Doc healed him.
- The World Beneath Our Feet Part 1 (First appearance)
- The World Beneath Our Feet Part 2
- The Unbeatable Master
- King of Sling
- Ghoul from Beyond
- Slugterra: Eastern Caverns
- Slugterra: Into the Shadows
|Heroes||Will Shane · Eli Shane · Beatrice Sting · Kord Zane · Pronto · Jimmo Shane · Junjie · Yang|
|Villains||Dr. Blakk · Viggo Dare · Nacho · Twist · Mr. Saturday · Blite · Malvolio Drake · Brutale Drake · John Bull · C.C. · Billy · Shorty · Glasses · Boss Ember · Straggus · Mongo · Locke and Lode · Sedo · Sergeant Slug · Blakk Employees · Quentin · Maurice · The Game Master · Dark Servants · Spirex · The Emperor · Dai-Fu · Jonny Man · Tad|
|Recurring||Gerhard Stocker · The Gentleman · Mario Bravado · Dana Por · Shock Wire · King of Sling · Marcus · Gabe · Fav · Frost · Jacques · Waylon · Munch · Flame · Millard Milford · Swick · Drucilla · Underlord Sleade|
|Other||Shanai · Tom Por · Turtleton|