Frontier Brains (Japanese: フロンティアブレーン Frontier Brain) are the owner of a facility on a Battle Frontier and are of the highest rank, much like a Gym Leader is to a Gym. Similar to a Gym Leader's Badge, Frontier Brains will hand out an item to a Trainer that proves their skill and is a sign that they have been beaten by that Trainer. Hoenn region Frontier Brains will give out Symbols, while Sinnoh region Frontier Brains will give out Prints.
In the anime, Ash managed to defeat the first five Frontier Brains on the first try while it took him two tries to defeat Salon Maiden Anabel and three tries to defeat Brandon, the lead Frontier Brain. After Ash finally defeated, Scott (revealing himself as the owner/founder/head of the Battle Frontier) offered the chance to become a Frontier Brain himself, but Ash declined the offer, still wanting to pursue his dream of becoming the world's greatest Pokémon Master.
Hoenn Frontier Brains
| Factory Head Noland |
Arena Tycoon Greta |
Dome Ace Tucker |
Pike Queen Lucy |
Palace Maven Spenser |
Pyramid King Brandon |
Salon Maiden Anabel |
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Sinnoh & Johto Frontier Brains
| Tower Tycoon Palmer |
Factory Head Thorton |
Arcade Star Dahlia |
Castle Valet Darach & Lady Caitlin |
Hall Matron Argenta |
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