1. Kakashi Hatake: Kakashi possesses the Sharingan, though he is not a Uchiha. He is known as the "Copy Ninja" for his mastery of numerous jutsu. Despite his strength, he cannot fully tap into the Sharingan's power.
2. Nagato: Nagato's Rinnegan is a controversial eye. Some believe he awakened it himself, but it was transplanted by Madara Uchiha. There are still misconceptions about the origin of Nagato's Rinnegan.
3. Danzo Shimura: Danzo acquired Sharingan through extreme methods. He took Shisui Uchiha's Sharingan and implanted ten more in his right arm. However, he squandered these eyes as disposable tools.
4. Ao: Ao, a non-Byakugan user, obtained the Byakugan during battle. It helped him uncover Danzo's conspiracy during the Five Kage Summit and protected him from danger.
5. Crow: Itachi Uchiha transplanted Shisui's eye into a crow. This crow with the Sharingan is extremely powerful, even for Kakashi. Its longevity is considered miraculous in the ninja world.