Doctor Prospect

Doctor Prospect is the main antagonist of Kamen Rider Eternal. A Foundation X scientist who was studying psychic abilities and created the Quarks while given the task of eliminating NEVER.

Personality
Prospect is a cruel man who shows little mercy whether it be towards NEVER or some of his own subordinates even to the extent of killing the weaker Quarks through the use of the Heaven's Horn barrier he created in order to weed them out and give them a peaceful death, or killing anyone who attempts to escape him through the powers of the Eyes Dopant.

Abilities
As one of the finer scientists of NEVER, Prospect found ways to unlock psychic powers creating the Quarks and the Heaven's Barrier.

Through the use of the Eyes Memory, Prospect becomes the Eyes Dopant to enforce his will on others. As the Dopant, he is able to counterattack by detecting the opponent's next move and brand the Quarks with an eye marking on their foreheads that kill them should they try to escape.

History
Prospect was given the task to eliminate NEVER when they were in South Asia. He ordered one of his stronger Quarks, Mina for the this but she betrayed him and joined up with Katsumi in an attempt to free the other Quarks. Prospect then faced Katsumi as the Eyes Dopant and proceeded to kill all of the Quarks, and even Mina but she survived. However, the action drove Katsumi mad and he killed Prospect with the Eternal Memory's Maximum Drive, destroying the Eyes Memory and leaving him victim to its psychic killing effect.