Three teenage Sea Wizards; Tori II, Cat II, and Jade II (an anti-heroine) are three of the main deuteragonists.

The Sea Wizards
Character Information
Other names
Appearance Tori II: a mexican-italian wizard with brunette hair
Cat II: a dull-witted irish-canadian wizard wannabe with red hair
Jade II: a sarcastic jewish-canadian goth wizard with black hair with green (later, violet) highlights
Species wizards - mermaids
Home Tri-State Area
Allies each other, The Sea Witches, The Sea Sorceresses, Tori the Wizard, Jade the Witch, Freddie the Sorcerer, Hiccup II, Astrid II, Fishlegs II, Snotlout II, Ruffnut II and Tuffnut II, Victoria II and Jayden, Heather, Gwen, and Courtney the Witches
Enemies Victoria, Catrina (frenemy, now formerly), Carlotta and Samantha (formerly)
Likes Cat II: girly stuff
Jade II: messing with Tori II (sometimes)
Dislikes Jade II: girly stuff
Cat II: not-so-fun stuff
Powers, actions, and abilities All: magic spells and tricks
Jade II: short-temper, strength
Weapons Terrakinesis, Naturakinesis, Aethikinesis