This page is a list of Minor Characters. This includes any characters who have made little to no appearances in the series and haven't had much development; this includes background characters, sidekicks and any unnamed characters.
Voiced by Vincent Tong and simply credited as "Bartholomev", he's a scientist who runs the Slugterra Institute of Technology and who shows Tobias and Katherine McGregor's inventions to a rich man named Dorium, who's funding the university. However later they're all threatened by Quintin who demonstrates his new invention: the RoboSlug.
Voiced by Brian Drummond and simply credited as "Cyrus", he's a man who lives in Gateway Cavern. He tells the Shane Gang that they do not need their help to chase out Locke and Lode and Blakk Guards as they have the King of Sling in the episode "King of Sling".
This Darkbane was one of the first the Shane Gang immediately come across when they enter in The Deep Caverns in "What Lies Beneath". Not much is known about him but appearance wise, he's pretty big in Darkbane standards and looks somewhat like El Diablos Nacho when Nacho's in his true Darkbane form, except this guy wears a greyish attire instead of red one and has a scar on his left eye, but in Slugterra: Slug It Out!, Nacho is the one shown in greyish attire which can be misleading, but this could all imply that this guy is one of the highest ranked Darkbane (third to be exact), just below Nacho, the Captain of the Darkbane. He's voiced by Michael Kopsa.
Note: He's also one of the lucky characters to appear in the current intro of the series.
Voiced by Tabitha St. Germain and simply credited as "Desdemona", she's a tough slinger who appeared in "Club Slug" to get an upper hand on her brothers.
- The World Beneath Our Feet Part 1 (Cameo)
- The World Beneath Our Feet Part 2 (Cameo)
- Club Slug (First appearance)
- A Distant Shore
Voiced by Michael Dobson and simply credited as "Dorium", he's a rich snobbish man who chats with other rich people in the SlugTerran Express in "The New Kid Part 2". He reappears in "Roboslugs" to visit the Slugterra Institute of Technology in Futuria Cavern in which he's been funding.
Drucilla's father or better known as "The Technician", was a famous Eastern Caverns technician and the original owner of the factory that Drucilla currently runs. Unfortunately not much is known about him, except that when Junjie told the Shane Gang about "The Technician", he was actually referencing Dru's father, who had been running the factory around 20 years ago prior to Junjie's time as the Dark Slinger, though Junjie had never met him in person. And later, Drucilla would reveal that at some point the Dark Slinger (Junjie) would attack the factory and her father, and while the factory managed to get up and running again, her father on the other hand never completely recovered.
It's however still unclear whether he still lives or has since passed away.
- Eastern Tech (Appears in flashback(s))
Eli Shane's Mother
Nothing specific is known, but Eli Shane mentions that he has/had a mom, and that when he was 10 years old, she had to leave for unknown reasons, which lead him to living with his uncle (possibly Jimmo Shane).
- Slugterra: Into the Shadows (Mentioned only)
|Fang is a large, red, tattooed male Amphibanoid and the muscle of Malvolio Drake and Brutale Drake's pirate crew. He's voiced by Lee Tockar. Note: he also appears in the game Slugterra: Slug It Out! but with greenish skin instead.
Voiced by Shannon Chan-Kent and credited as "Flower", she was a green hair Elf introduced in "Slugterra: Eastern Caverns", who resides in The Eastern Caverns and was a member of The Outlaws, a resistance against the sinister Emperor.
- The Journey to the Eastern Caverns (First appearance)
- The Great Slug Robbery
- The Emperor Strikes Back
- The Return of the Eastern Champion
Howard is a male Human and the husband of Sylvia. He first appears in "Dawn of the Slug" when he and Sylvia go to Caverna Mall Cavern and are abducted by Zombies. They are later zombified by Mr. Saturday who uses a Cryptogrif but are freed when Eli uses Doc to cure the Cryptogrif. In "The Thrill of the Game", The Game Master uses a robot to disguise as Howard for Eli's game. He is voiced by Scott McNeil.
Nathan, voiced by Brian Drummond, is/was an overexcited man seen in a tavern in Heaven's Pillar Cavern in The Eastern Caverns, who was amongst the people of the cavern who were celebrating the defeat of The Emperor, only to be interrupted by Jonny Man.
- Eastern Tech (First appearance)
- Slug Day
- The Emperor Strikes Back
- The Return of the Eastern Champion
- Slugterra: Return of the Elementals (Mentioned only)
Briefly mentioned in "The New Kid Part 1", she is the deceased grandmother Pronto Geronimole, a member of the Shane Gang and the Mole King. And she had apparently passed down her "delicious" recipes to her grandson.
Slug Run Announcer
Sylvia is a female Human and the wife of Howard. She first appears in "Dawn of the Slug" when she and Howard go to Caverna Mall Cavern and are abducted by Zombies. They are later zombified by Mr. Saturday who uses a Cryptogrif but are freed when Eli uses Doc to cure the Cryptogrif. In "The Thrill of the Game", The Game Master uses a robot to disguise as Sylvia for Eli's game. She is voiced by Kathleen Barr.
- A Distant Shore (Mentioned only)
Little is know but briefly shown in The New Kid Part 2, Twist's father while accompanied by Twist, for some reason stole a bunch of slugs which ultimately lead to a mechaback chase with Will Shane. And in the end it would presumably cost him his life, as the chase would end in Deaddrop Cavern, where he would apparently fall down a chasm to his death. However Will Shane managed to save Twist and slugs on time, only to have Twist orphaned and resent the Shane for his father's death.
- The New Kid Part 2 (Appears in flashback(s))
Unknown Slug Fu Master
Briefly referenced in "Slugterra: Eastern Caverns", this mysterious Slug Fu Master is known for being the original owner of the Wrist Blaster that Eli Shane is currently known for possessing. According to Underlord Holt, the master had their blaster stolen by the arrogant underlord but it remains a mystery how the underlord achieved such a task or what became of the mysterious master.