Jun Maehara

Jun Maehara (前原 淳) was the scout of the Nozama Peston Service. After his death at the hands of Dragonfly Amazon he was revived by transplanting Amazon Cells into his corpse. He uses the Amazons Driver to become Kamen Rider Amazon Sigma (仮面ライダーアマゾンシグマ).

Character History
Jun is originally a member of the Nozama Peston Services, and an Amazon hunter. He is untimely killed during the hunters' confrontation with the Dragonfly Amazon, formerly Ryusuke Otaki, attempting to get through to his former comrade only to be mauled by the hungry Amazon. Mortally wounded, Maehara takes solace in that, though fated to die at the hands of one of the beasts, it was Otaki who did so, before he dies.

He is later resurrected and given a third Amazons Driver, allowing him to transform into Amazon Sigma, an Amazon similar in appearance to Amazons Alpha and Omega. He was easily able to overpower Amazon Alpha and Omega at first, even managing to deliver a near-fatal blow through Amazon Omega's torso. However, during their next battle, he was defeated, and was mortally wounded by Mamoru.

Abilities
Little was known about Jun's abilities while he was a living human, other than him being a skilled hacker and fighter, as well as an accomplished chess player, the later of which is often referenced in his fights as an undead Amazon, used for taunting his opponents as to how many moves he would take to finish them off.

As a biological weapon designed and built to surpass the 'old' Amazonz in every way, his basic fighting abilities as an undead Amazon is easily on par with that of Alpha's and Omega's, while his lack of morality and sense of pain boosts his parameters significantly, enabling him to easily take on Alpha or Omega on one-on-one fights. However, his lack of sense of pain also serves as his weakness as he is unable to gauge the damage he has taken in fights, causing him to overexert himself all the time, thereby taxing his regenerative abilities heavily.

As an undead with no need, as well as being incapable, of consuming food, he is forced to rely on researchers back in Nozama Pharmacy for maintenance of his wellbeing. His overall abilities are also dependent on how good said researchers are at their jobs in maintaining and upgrading him, as he is thoroughly incapable of growth in any way. This makes him a deadly yet easy to control weapon.

Devices

 * Amazons Driver

Portrayal
Jun Maehara is portrayed by Hiroshi Asahina (朝日奈 寛). As Amazon Sigma, he is portrayed by suit actor Makoto Arakawa (荒川 真).

Appearances

 * Icon-amazons.png Kamen Rider Amazons
 * Episode 1: AMAZONZ
 * Episode 2: BEAST INSIDE (Death as human)
 * Episode 9: INTO THE CANNIBAL'S POT
 * Episode 10: JUNGLE LAW 
 * Episode 11: KILLING DAY (Death as Amazon Sigma)