El Diablos Nacho is character and antagonist from Slugterra. He is a ghoulslinger with power to spare. He was Dr. Blakk's right-hand man.
This massive Ghoulslinger of mysterious origins, with a hole in his heart that's bigger than the deepest, darkest pit shaft in all of Slugterra. He is Dr. Blakk's "special operations" enforcer.
El Diablos is summoned to talk sense into a "mis-informed" jury, or to persuade a potential "business partner" to sign a "most generous" offer. Wielding his massive Growler Kiloton blaster, El Diablos likes to use Nightgeist Ghouls in battle. Not that he needs them to put fear into his opponents, his creepy face does a good job of that on its own.
In "Light as Day", he was carried off by the Shadow Clan right when he was about to kill Kord. His current fate is unknown, though the two most probable events is that he was either thrown back into the Deep Caverns or killed. El Diablos comes from the Deep Caverns underneath SlugTerra, as shown in "What Lies Beneath". He worked to make sure that Dr. Blakk upheld his end of the deal with Nacho's master, Brimstone, leader of the Darkbane.
- The Trade (First)
- Mecha Mutiny
- The New Kid Part 1
- The New Kid Part 2
- What Lies Beneath
- The Return
- Keys to the Kingdom
- Back to Blakk
- Dark as Night
- Light as Day
- Battle For Slugterra
- Slugterra: Slug It Out!
- His favourite Slugs are: Nightgeist, Jollyfist, and Hop Jack.
- At the end of "The New Kid Part 2", Nacho is sent back by Dr. Blakk back to "where he came from" The Deep Caverns and has Twist replace him.
- El Diablos Nacho means "The Devil's Ignace Nacho(Ignace)" in English.
- Nacho is the nickname of Ignace in Spanish, like Nick and Nicholas.
- His appearance as a Darkbane is the appearance of the more bulky generic darkbane grunts.
- He is a Darkbane brother.
- He seems to be the only Darkbane with the ability to disguise themselves.
- In the episode "What Lies Beneath", not only can Nacho be seen in his true Darkbane form while in the Deep Caverns, but he can also be seen holding his blaster, but he never fires a single ghoul.
- El Diablos Nacho is capable of not being electrocuted when he holds on to Joules, its possible that all Darkbane is capable of that.