Professor Sycamore is mentioned as the one who selected a group made up of the player character, the opposite-gendered character, Shauna, Tierno, and Trevor to help him with his research, sending the Prof's Letter to the player's mother to ask her permission. Professor Sycamore personally gives Trevor and Tierno their Pokédex and first Pokémon, asking them to deliver both a Pokédex and a starter Pokémon for the remaining three members of the group. He sends the three Kalosstarter Pokémon through Tierno.
The player first meets him in Lumiose City, where he will battle the player and, afterwards, gives them one of the three Kanto starter Pokémon. On the way to Shalour City, he will instruct the player to meet Gurkinn, the Mega Evolution guru, to learn and get a better understanding about Mega Evolution. Later, he appears at the Coumarine City monorail station and talks to Diantha about Mega Evolution and how it may be possibly related to the bonds between Pokémon and their Trainers. There, he will congratulate the player for using Mega Evolution for the first time and gives them HM02 (Fly).
He feels disappointed when Lysandre reveals himself to be the boss of Team Flare, but turns to his network of acquaintances to try to stop the villainous team's plan. He sends Dexio and Sina to the Lysandre Labs in order to investigate Team Flare's interest in AZ and how to thwart their plans.
At Couriway Town, he will apologize to the player for not preventing what Lysandre had done. He then challenges the player to another battle to test how far they have come in their journey. After being defeated, he informs the player that he has a special surprise for helping stop Team Flare and leaves. Once the player has beaten the Pokémon League, he leads a parade for the player in Lumiose City, where he awards them and their friends with the Honor of Kalos for their heroics.
After being defeated for the first time in Lumiose City, Professor Sycamore will let the player choose themselves one of the Kantostarter Pokémon. After the player has chosen their Pokémon, Professor will also give the player the starter's final evolution's respective Mega Stone (if Charmander was chosen, the Charizardite received will depend on the version of the game that's being played).
This section is incomplete. Please feel free to edit this section to add missing information and complete it. Reason: Missing quotes and missing values for Pokédex. Missing the quotes from Dendemille Town..
"Welcome to the world of Pokémon!"
"I am Augustine Sycamore, the Kalos region's very own Pokémon Professor."
"This world of ours is widely inhabited by creatures known as Pokémon!"
"These mysterious creatures can be found in every corner of our world..."
"Some run across the plains, others fly through the skies, and others yet swim in deep oceans..."
"We live together with these Pokémon, lending our strength to one another to live and prosper."
"Let's get started with some quick questions... Are you a boy? Or are you a girl?"
"And what do you look like?"
"Oho, I see. Would you tell me your name?"
"So it's <player>, then? Did I get that right?"
Yes: "<player>... Très bien! What a fantastic name!"
No: Returns the player to the 'Your name?' screen.
"<player>! Your adventure begins now! You are about to enter the beautiful Kalos region!"
"Go and meet many Pokémon and people, and fill your life with rich experiences!"
"Fantastic! You're here! Come this way, won't you?"
"Many thanks for coming all the way from Vaniville Town! I'm Professor Sycamore! It's a pleasure to finally meet you! How is your Pokémon journey going so far? Have you met many different Pokémon? Fantastic! Let me have a quick look at your Pokédex and see!"
Uses the line depending on how many Pokémon have been seen in the Central Kalos Pokédex.
"Well now, you DO have a certain je ne sais quoi! I have a good feeling about you! At first, I was thinking of choosing only one child from a town when I was deciding who to give a Pokémon to. In Vaniville Town, it was going to be the child of a Veteran Trainer I know. About then, I learned that the Rhyhorn racer Grace and her son/daughter were moving here. Here in the Kalos region, you're far away from everything you used to know... That really hit me right here... Then it hit me--I should give you a Pokémon and have you travel around Kalos!"
"Fantastic! Now, let's all have a Pokémon battle! Your opponent shall be me!"
"Shall we start the battle?"
Yes: "Just so you know, I'm not that tough!"
No: "No problem at all! I'll wait! I'll wait as long as I must!"
"Ha ha! You're too much for me! You're really something, aren't you?"
After being defeated
"I think I've about figured it out!"
"<Player>! You are an interesting Pokémon Trainer indeed! It'd be fantastic if you took another Pokémon with you! Here! Pick one!"
"You picked Bulbasaur/Charmander/Squirtle, then! I see. That's simply wonderful!"
If the player's party is full and the player declines to send a Pokémon to the PC
"Oh! So you don't want it right now? Come back and get your Pokémon once you've organized your PC Boxes."
If the player has or makes room in their party
"Would you like to give your Pokémon a nickname?"
Yes: "So, you've decided its nickname will be <nickname>?"
No: "Oh, I see. You're not going to give your Pokémon a nickname, then."
"Since you chose Bulbasaur/Charmander/Squirtle, I'll give you this Mega Stone."
"Come now, you two. Pick your Pokémon."
"Well, I've got a feeling everyone else will show up soon."
"See. Wonderful! Everyone's all here! So now that we're all here, I'd like to say a few words. Be the best Trainer you can be! At the same time, remember to have fun traveling with your Pokémon! Also, I want to ask for your help in solving the Kalos region's biggest Pokémon mystery: the secret and potential of Mega Evolution, a new kind of Evolution that occurs in battle! That's why I gave you that Mega Stone just now. It's an important clue!"
"Trevor, my lad, if that's what "best Trainer" means to you, then I want you to go out there and complete that Pokédex!"
"If you're investigating Mega Evolution, why don't you check out Camphrier Town? That town has a lot of history--you might find a hint there! Now listen. If you visit many different places to complete the Pokédex, you will probably see Pokémon with many ways of living and meet people with many ways of thinking. First, accept the ways of living and thinking that sometimes conflict with your own. And think about what's really imporant--this will truly broaden your horizons."
If Bulbasaur/Charmander/Squirtle was previously left with the professor
"Why hello! Nice to see you! Here's the <Pokémon> you chose! Take good care of it, OK?" (If accepted, afterwards he asks about giving it a nickname, the same as above. Whether accepted or not, he concludes with his last four lines above.)
"Congratulations! I see you finally obtained everything you need for Mega Evolution! A Mega Stone for the Pokémon, a Mega Ring for the Trainer, and a strong bond with your Pokémon."
"It's only a hypothesis, but I think the bond between Pokémon and Trainer is the key to this new Evolution. But what is this bond, exactly? And why are there examples of Mega Evolution only in the Kalos region? There's still so much we don't know..."
"Oh! What an excellent point! Indeed! The more you know, the more there is to research! The excitement never ends, does it?"
"Oh, that's right! I came here to give you this!"
"Use the HMFly to pop right over to Pokémon Centers of places you've already visited! Well then, <player>..."
"I was just having a conversation with Lysandre about Mega Evolution."
"Actually, Lysandre himself is of royal ancestry... He truly is a chosen one."
"By the way, <player>... Do you know where the Holo Caster is made?"
Yes: "That's right! They're made in Lysandre's lab."
No: "Oh really? Well, they just happen to be made in Lysandre's lab."
"Lysandre is a great man. He supports Trainers and Pokémon research with some of the profit from the Holo Caster."
"What a passionate person. He's just like a blazing flame. Perhaps his pride in his lineage is what makes him burn so intensely."
"That being said, what Lysandre says is only one way to looking at things... It's not necessarily the truth. <player>! What's truly important is the time you spend together with others! Treasure these moments spent traveling the Kalos region with your Pokémon!"
"I have to apologize to you about Lysandre... I'm very sorry for the trouble he caused..."
"And I'd also like to thank you! I'm sincerely grateful for what you did for all of the Pokémon and people of this world. And by stopping Team Flare, you also saved Lysandre. I always knew that he desired a beautiful world..."
"And maybe someday the population of people and Pokémon will actually increase to where resources become very scarce. If someone acts out of greed in such a world, surely some will go without. If all living things keep acting that way, there will be nothing left at all in the end. Why, there won't even be anything left to steal, will there?"
"But what I really wanted was for him to put his ego aside and lead everything to greater heights. I never had this discussion with him, though. So I'm partially responsible for this."
"Well, enough of that. <player>! I want you and your Pokémon to take everything you learned from your journey and hit me with your very best shot!"
"You are really something! You and your Pokémon have developed strong bonds by spending time together and by caring about one another. That's why you and your Pokémon are so strong."
After being defeated
"The strength you've found is simply marvelous! And... You truly love and trust your Pokémon! <player>! A treasure of mine is hidden in this town! If you'd like, try to find it. Well, I'll be off then! I have many preparations I must attend to! I have a little surprise planned for all of you to thank you for fighting Team Flare and saving Kalos!"
"What an amazing turnout! All of these people are here to celebrate your achievements. I'd like to present you with the Honor of Kalos for the bravery you showed battling Team Flare! I'm so proud of you all! On behalf of the entire Kalos region, I'd like to say... Thank you!"
"HisPokémon was waiting all this time... Waiting for him to return to the man he was. The man who loved Pokémon with all his heart."
Lumiose Station (post-game)
"How did you like your parade, <player>? So the reason I asked you to come here is... I wanted to give you a pass to Kiloude City!"
"Doesn't ring any bells? Kiloude City is a city in the southern part of the Kalos region. And it's the perfect place for Trainers looking to sharpen their skills! So here's your pass for the super high-speed rail to Kiloude City!"
"Use it to ride the TMV super high-speed rail! Take your pass to that scanner over there. It's an orange machine. Have the machine scan your pass to board the train. Have a fantastic time!"
"Wow, 600! Pokémon sure do live in all kinds of places!"
"You're a Pokémon-catching pro, you know that? My jaw drops at your incredible skills!"
"Trading Pokémon with friends is another great way to fill up your Pokédex!"
"If you have access, it might be a good idea to use the GTS, too!"
"Almost 700... Just a little bit more! Keep it up!"
700-717 Pokémon (with at least one non-event Pokémon not caught):
"This is it! We're in the final countdown for your momentous completion of the National Pokédex!"
706-718 Pokémon (first time, with all non-event Pokémon caught):
"This is such an emotional moment! I'm so lucky to have met you! This Pokédex could not have been completed without the sweat and hard work you put in as a Pokémon Trainer... It's a one-of-a-kind treasure chest packed full of your dreams!"
If the player has already obtained the evaluation for the completed Pokédex once, subsequent evaluations skip the sentence stating the number of caught Pokémon altogether and simply say:
"Incredible! You've already completed the National Pokédex!"
Professor Sycamore debuts in the X & Y chapter. He is first seen messaging Trevor via Holo Caster to inform him that the package of starter Pokémon he requested has been sent to Trevor's house. When Trevor arrives to take the three Pokémon, he is shocked to find the Legendary Pokémon Xerneas and Yveltal have appeared and begin battling each other. The battle causes destruction and mass panic in Vaniville Town, but Trevor manages to record footage of the event on his Holo Caster before it gets damaged. Once the two Pokémon leave, Trevor decides to travel with his friends to find answers as to what happened while also wanting to meet up with the professor in Lumiose City.
Sycamore debuts in person at his lab in Lumiose City, where he shows the footage Trevor recorded to Lysandre. Sycamore also gives a copy of the footage so that it may be used for further study.
Later, Trevor and his friends make it to Lumiose City. There, they meet with Professor Sycamore and return the Charmander that had previously escaped from Sycamore's lab. Trevor, Y, Tierno, and Shauna are sent to Lysandre Café to have Trevor's Holo Caster fixed while X stays behind. When X reveals that he doesn't want to take the Chespin that Trevor got for him because he worries that it will only get caught up in the constant attacks from Team Flare, Professor Sycamore decides to challenge him to a battle in hopes of changing his mind. Although X agrees, he is angered when he is forced to use Chespin instead of Kanga. The battle ends with Professor Sycamore as the victor. Despite the lack of interest in the fight, X is impressed by Chespin's valor enough to take it on his team and give it a nickname. Much to Professor Sycamore's surprise and confusion, X also takes an interest in training the Charmander.
Afterward, the two head off to the Prism Tower while riding the Gogoat Shuttle service. When X's friends ask Sycamore about Lysandre's scary demeanor, Sycamore laughs their worries off and assumes they were just shocked from his majestic personality. He then heads inside Prism Tower to have an interview with Lumiose Press.
Sometime after Team Flare's plot to use the ultimate weapon fails, Professor Sycamore apologizes to X and his friends for not noticing that Lysandre was actually the leader of Team Flare earlier. He asks them to head to Anistar City, where he may use the secrets of the Anistar Sundial to help them stop Team Flare. When X's group arrives at Anistar to meet with the Professor, they find him surrounded by four Hawlucha while dangling on a harness connected to the Anistar Sundial. X and Y free the Professor and battle against the Hawlucha, whose Trainer is hidden in the area. While X's team battles the Hawlucha, Sycamore reveals that the effects of the ultimate weapon firing on Kalos have made it so that X and Y can track Mega Stones with their Mega Rings, but only from 8 PM to 9 PM. X and Y decide to take this information to look for the Mega Stones for their new team members, Rute and Solsol, but realize that the person who commanded the Hawlucha is still at large. While X and Y stay behind to face the unknown Trainer, Tierno and Shauna take their Mega Rings to find the Key Stones for Rute and Solsol. As Tierno and Shauna search for the Mega Stones, Y discovers the person who attacked Sycamore was Essentia, a member of Team Flare, and battles her. After Essentia escapes, Sycamore learns from his assistants that Team Flare are hiding at the Pokémon Village.
Later, after Team Flare is defeated once and for all, Professor Sycamore, the Kalos Gym Leaders, Alexa, Bonnie, and Yvette congratulate X and his friends for their victory. Professor Sycamore proposes to have a party and parade as a celebration for their heroics, but Trevor declines, as he and his friends prefer to stick close to one another. Later, Sycamore talks to Blue and Blaine about their involvement in the battle against Team Flare. Blue and Blaine reveal that after they witnessed Zygarde disintegrate into its Cells, they noticed a green figure from where it once stood. Sycamore reveals that similar creatures have been seen in the Alola region, and sends Sina and Dexio there to investigate. While Sina and Dexio are away, Sycamore has Trevor take their place as his assistant.
Bulbasaur is one the Pokémon that hangs around Professor Sycamore's lab. It was first seen alongside the other Kanto starters watching the footage of the battle between Xerneas and Yveltal. Later, it watched the battle between Charmander and X's Marisso. When Charmander did damage to Marisso, Bulbasaur congratulated Charmander, embarrassing it.
Squirtle is one the Pokémon that hangs around Professor Sycamore's lab. It was first seen alongside the other Kanto starters watching the footage of the battle between Xerneas and Yveltal. Later, it watched the battle between Charmander and X's Marisso. When Charmander did damage to Marisso, Squirtle began clapping, embarrassing Charmander. It later accompanied Sycamore to the Sundial at Anistar City.
This Chespin was one of the three Pokémon that Professor Sycamore gave to Trevor so that he could get X out of his depression. Despite battling with him repeatedly, X refused to let it join his team. After using Chespin to battle Professor Sycamore, X decided to keep Chespin and named it Marisso.
This Fennekin was one of the three Pokémon that Professor Sycamore gave to Trevor so that he could get X out of his depression. Both it and its Pokédex were sent flying in the battle between Xerneas and Yveltal. It was retrieved by Team Flare and taken by Malva to join her team.
This Froakie was one of the three Pokémon that Professor Sycamore gave to Trevor so that he could get X out of his depression. After battling with Y repeatedly, it joined her team and was named Croaky.
Charmander is one the Pokémon that hangs around Professor Sycamore's lab. It was first seen alongside the other Kanto starters watching the footage of the battle between Xerneas and Yveltal. Sometime after, Charmander escaped from the lab and took a nap in a flower bed on Route 4, where its tail caused the flowers to catch fire. The fire was put out by Froakie, who Charmander had recognized since they both belonged to the Professor. After returning it to Professor Sycamore, the Professor decided to have a battle with X and chose Charmander to use against Chespin. Chespin was defeated by Charmander, and to Professor Sycamore's surprise, X took Charmander with him and named it Salamè.
Professor Sycamore was introduced as a Supporter card in the Pokémon Trading Card Game during the English XY Series (the Japanese XY Era). First released in the Collection X expansion, it later debuted in English in the XY expansion, with both prints featuring an illustration based on the Ken Sugimori artwork of the character. With the same effect as Professor Juniper from the Black & White expansion, Professor Sycamore allows the player to discard their hand and draw seven cards from their deck.
This charming professor is an eminent Pokémon researcher in the Kalos region. He's dedicated to solving the puzzles of Mega Evolution in Pokémon, but unlike some other busy researchers, he always makes time to keep his hair stylish and his clothes and work space tidy.