Taros

The Rider Pass that Dwayne Winfield uses to become Kamen Rider Electric King can summon at least four Imagin. Each of these Imagin gives Electric King their power when they are called upon with each form suited to their fighting style. These Imagin are collectively known as the Taros due to their namesakes. When not possessing Dwayne, the Taros spend their time in the ElectroLiner's dining car. However, they are also able to enter physical time & space by possessing vacant forms, such as full-body costumes, although this leaves them physically unstable. The Imagin have also proven capable of possessing Dwayne all at once after the creation of Climax Form, but outside of their transformed state, this 4-way possession is dangerously unstable & physically stressful for Dwayne. Due to their nature as Imagin, they can sense other Imagins near Dwayne's vicinity & alert him to their presence. In addition to powering up Electric King, the four are each armed with a weapon & each are able to perform their form of Electric King's finishing attack in their normal state.

When the Junction Point starts to form, the Taros start to lose sync with Dwayne & are unable to possess him when he travels to the past. To continue to assist him, they create the ElectroKamen Sword, which allows him to channel their power without direct possession. Though Dwayne is curious of these recent events, the four are reluctant to explain that it meant the future they came from is being erased, causing their kind to cease to exist as the result of their battle with the evil Imagin. In spite of it, however, the Taros intend to keep fighting to the end, gaining physical form within normal space-time as a result of each Imagin granting Dwayne's wish that they fight together until the end. When the time does come & they fade away, it is revealed that the memories they made with Dwayne (a singularity point, & the primary Electric King) have created a time lag, allowing them to maintain their existence as they take leave on the ElectroLiner.

Soon after, the four become members of the ElectroLiner Police, a newly-made law-enforcement group to prevent changes in the past by Imagin who also survived the Junction Point & form an army under Negataros.