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For the variant appearing in the games, see Blue.

Always know what your limitations are. If you don't, then you're only beating on yourself.

–Blue, A Glimpse of the Glow

Blue, full name Blue Oak, is a deuteragonist of the Red, Green & Blue, Gold, Silver & Crystal, and Emerald arcs of Pokémon Adventures. He was also a protagonist in the FireRed & LeafGreen arc. Blue is 16 years of age as of the Emerald arc and his birthday is November 22 (Sagittarius). He normally serves as a rival and friend to Red. It is revealed that Blue trained under Chuck, the gym leader of Cianwood. Therefore, he knows a lot of martial arts.


This section, or a part of it, has been transcluded from Blue; any changes involving it should be made there instead. / 

Blue is a tall, thin young man with light skin, brown eyes, and tall, brown spiky hair.

Red, Green & Blue arc

He wears a long purple shirt, dark gray pants, a yin and yang necklace, and brown boots with black straps encircling them.

Yellow arc

Blue's appearance remains the same as it is in Red, Green and Blue.

Occasionally, he wears a brown cloak during his travels.

Gold and Silver arc

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Crystal arc

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FireRed & LeafGreen arc

Hiss appearance changes slightly; the colors of his shirt and pants are switched, so he wears a short-sleeved dark gray polo shirt with the collar flipped up and purple cargo pants and black shoes. He also carries a light blue pack around his waist, and has purple bands around his wrists.

Emerald arc

Blue's appearance remains unchanged from FireRed and LeafGreen.

HeartGold & SoulSilver arc

Blue is slightly older, taller and more mature-looking. He wears a black leather jacket, a black belt around his waist, khaki cargo pants, and black shoes.

X & Y arc

Blue's appearance remains unchanged from HeartGold and SoulSilver.

He also wears the brown cloak from Yellow.


Blue's special skill is Pokémon training- leveling them up and making them strong, and as such is referred to as the "Trainer".

At the start Blue was very cocky and blunt and he was also quite mean. However he later matures and he's a more calm and intelligent person who can be a father figure or mentor figure, especially towards yellow and x.


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Red, Green & Blue arc

Blue makes his debut as he battles the "Phantom Pokémon". He called out Charmander to battle it. As the battle dragged on, he eventually recalled Charmander. A boy in red then reveals himself then asks him why he didn't continue the battle. Since Blue did not answer, he then called out a Poliwhirl to battle, but lost instantly. The Pokémon then fled. As the boy nursed his Poliwhirl's wounds, Blue explains that he noticed the difference in power between Charmander and the Pokémon and stopped. He then leaves the boy to his own accord.

Blue's grandfather, Professor Oak, contacted him and told him that he gave another trainer a Pokédex. Blue wondered who it was.

Blue, having already arrived at the Viridian Forest, begins training with Charmander. They had just defeated a Venomoth. He checks it in his Pokédex and realizes that he already caught one. Later, he spots a Poliwhirl and commands Charmander to attack. Suddenly, a boy (the same one from Pallet), comes out of the bushes and calls out to the injured Poliwhirl. Blue then says that he thought it was wild. The boy angrily lunged at him only for Blue to effortlessly parry him. Blue then explained that it would only a matter of time until two trainers capturing Pokémon would come across each other. Suddenly, giant footsteps could be heard. Blue then says that he had been waiting for this.

Then, a Kangaskhan appeared. Blue commanded Charmander to attack. He then explained that he would catch it and record its data in his Pokédex. The boy immediately noticed that it was a Pokédex. He then reveals to Blue that he also owns a Pokédex all he could do was laugh. Blue then explained that his grandfather said that he gave a Pokédex to another trainer and questioned why he's the new owner. When Kangaskhan was weak enough, Blue tried to catch but to no avail. As Charmander continued to attack, the boy demanded that he stop attacking. Blue just brushed him off. The boy then commanded his Poliwhirl to dowse Charmander. Blue demanded to know why he did that. The boy then ran up to the Kangaskhan and asked if her child was okay. Blue was surprised by what he just overheard.

The baby then poked her head out of the mother's pouch. It looked very sickly. The boy gave it a potion and when the baby was healed, the mother left. Blue then complained that he could have captured it and the boy responded by saying that it would not fair to battle someone at a disadvantage. As Blue began to walk away, the boy introduced himself as Red and asked for his name. He answered only to shut him up. Red then shouts that he won't lose to him and then he left.

Blue is one of the finalists. They seem to be neck in neck with Blue appearing with the upper hand and since Blue's Pokémon are much stronger than Red's, it would seem like Blue would win. Blue's Charizard collapses due to exhaustion, a split second after Red and his team collapse. Blue is the only one standing. But because Red's Pikachu collapsed just a moment after Blue's Charizard did, Red won.

Yellow arc

Blue is first seen defeating a Gastly that Yellow, Misty, Brock and Erika were fighting. Then, he reveals it belongs to the Elite Four member Agatha. Before he leaves, Yellow makes a request to train with him, which he accepts.

After separating with Yellow, he makes another appearance with Blaine, Green, and Bill. They try to fend off the Elite Four trainers along with Team Rocket admins Sabrina, Lt. Surge, and Koga. Blue is paired up with Koga through Sabrina's Spoons of Destiny and fought Agatha. They managed to beat her, however, Koga is hurt badly and has to stay. After separating with Koga, he meets up with Green and Red (freed by Giovanni). They help Yellow defeat Lance, the boss of the Elite Four.

Gold & Silver arc

After Red declines the position to be the Viridian City Gym Leader, Blue takes up the position.

FireRed & LeafGreen arc

He is first shown to meet with Red in Pallet Town before he sets off to Vermilion City to board the ferry Professor Oak sent him and Red to take to the Sevii Islands. He and Red meet Green on the ship just before she loses consciousness. Initially, Blue starts to fight against Deoxys for his friend's, Green's, sake, but it later became personal when Professor Oak himself is revealed to be abducted. He, Red, and Green fight against Sird and is soon reunited with Silver and Yellow . In the end, playing his last trump card, Sird turns all five Pokédex holders, Red, Green, Blue, Yellow, and Silver to stone.

Emerald arc

Blue and the others are freed from their stone statues thanks to Crystal, Emerald, Gold, Sapphire and Ruby. Later, he joined the fight against Guile Hideout and won with each and every Pokédex Holder helping with the ultimate moves. Later, they are surprised when Red said why they will hold a match and each Pokédex Holder will join, it is known that Emerald won it.

X & Y arc

Blue reappears, watching Xerneas leaping in the air with the others. He says how the battle can be stopped if "Z" really exists. He had his Rhyperior protect Diantha and other people from Team Flare's attacks. Diantha joined Blue (whom he recognizes her from before as a talented trainer), who was told "X" and "Y" will awaken in Kalos, hence they need a third Legendary Pokémon to counter those two.


In rotation

Golduck is used by Blue primarily due to its Psychic abilities, in which it can see things obscured from his eyes. It can also be used as a channel for conversation through the Pokédex. Golduck is also used as a mode of transportation by Blue.

In storage


In Chapter 18 "A Tale of Ninetales" Poliwrath was accidentally traded to Blue, but he and Red traded back when they met up again.

In Chapter 18 "A Tale of Ninetales" Ivysaur was accidentally traded to Blue, but he and Red traded back when they met up again.

In Chapter 18 "A Tale of Ninetales" Pikachu was accidentally traded to Blue, but he and Red traded back when they met up again.


Given away




  • In Japan and in the Chuang Yi translation, Blue was known as Green, with Green being known as Blue.
  • Unlike Blue's anime counterpart, Gary, Blue is shown not to care for his Pokémon very much.
    • Similarly, while Gary picked Squirtle as his starter, Blue picked Charmander.

See also