|Era||Era of Light and Dark|
Dr. Troy resides in northwestern Lynna City. He will inform Link on various creatures in the game. Once Link defeats Veran, Dr. Troy will travel to the Target Carts game on Rolling Ridge to study Gorons.
In a Linked Game in Oracle of Seasons, Dr. Troy's student will appear in Holodrum next to Guru-Guru on top of the Windmill near Horon Village. He will ask Link to tell a Secret to his teacher in Labrynna. Once Link tells the Secret to Dr. Troy, the biologist will thank Link for the update, and will offer him a "gift" if he can get a perfect score in the Target Carts mini-game. After successfully completing the mini-game, Dr. Troy will give Link the Bombchus.
|Names in Other Regions|
|Japanese||どうぶつがくしゃトロイ (Dōbutsugakusha Toroi)||Zoologist Troy|
- Encyclopedia (Dark Horse Books), pg. 254 (OoA)
- "Hoh hoh! I am Troy. I am a dedicated and hardworking biologist." — Dr. Troy (Oracle of Ages)
- "Hoh hoh! I am Troy! In my younger days, I traveled the world and saw many animals." — Dr. Troy (Oracle of Ages)
- "I've come to Rolling Ridge to study the Gorons and their games." — Dr. Troy (Oracle of Ages)
- "My student is studying hard in Holodrum." — Dr. Troy (Oracle of Ages)
- "I am the senior pupil of Troy, Labrynna's biologist!" — Dr. Troy's Student (Oracle of Seasons)
- "I'm very busy, so I want you to tell this secret to Dr. Troy up on Rolling Ridge in Labrynna!" — Dr. Troy's Student (Oracle of Seasons)
- "Thankyou for updating me. Let me offer you something in return... But not for free! If you score high enough in that game, you can have a gift, OK?" — Dr. Troy (Oracle of Ages)