|Transformation Item||Leo Ring|
|Home world:||Nebula L-77/Land of Light|
|First Appearance:||Ultraman Leo episode 1 When Seven Dies! Tokyo Submerges! Magma-seijin, Red Gillas, Black Gillas|
|Last Appearances||Ultraman Saga|
|Portrayed by||Ryu Manatsu|
Gen Otori (おゝとり ゲン, Ōtori Gen?) is the Human form of Ultraman Leo, who took this form immediately after his first battle on Earth with Alien Magma and the Gilas Brothers, he was the prince of the now destroyed world of a second planet of Ultra's (after the Land of Light) ruled by his parents. The only other known survivors where his brother Astra and his pet Ron.
The protagonist and the seventh MAC team member. After his home world in Nebula L-77 was destroyed by Alien Magma, he moved to Planet Earth, following the invaders. After the battle with Alien Magma and Gillas Brothers, he was invited to the team MAC. He made his living as a coach in the Town South Club and his girlfriend was the member of the Town South Club (but was killed by Saucer Monster No.1 - Silver Bloome). After the MAC Station and Town South Club were destroyed, he lived in his friend's Mei san's house. Unemployed he spent his free time training local youths to defend themselves, a trait that saved him in his last battle as the children took on Commander Blak themselves. After defeating Black End, the last of the saucer monster from the Black Star and the death of Commander Black, he decided to travel, taking of to unknown places
- Ryu Manatsu, who played Gen Ohtori in the series, is a real-life singer and performed the first opening theme of Ultraman Leo's series.
Ultraman MebiusEditYears later Gen returned to his beloved Planet Earth during the time of Mebius' stay on the planet. Gen watched from afar and the young Ultra and Crew GUYS J were defeated by a Reflectian. Disappointed with his performance, Gen sent out a telepathic call to Mirai leading him and his friends to the island where he fought the Gilas Brothers so long ago. Their he berated the Ultra for his failure and also challenged him. Mirai's friend tired of the old man insulting him, demanded his identity and how it was he knew Mirai was an Ultra. It was then the Gen transformed into his true form challenging Mebius to battle. Mirai also transformed and the two Ultras battled, early one it was clear that Leo had greater fighting abilities and declared to Mebius that "if he wasn't serious he would die!" Mebius and Leo continued their battle which Leo ended with his Leo Kick soundly defeating Mebius. Back in their human forms, Ryu and George pulled their blasters out on Gen demanding an explanation for his actions. Gen calmly told them essentially that their reliance on weapons made them unreliable as they should learn to rely on themselves for first before expecting others to rely on them surprising them enough to make them lower their weapons. Gen turned Mirai and explained his reasons, Earth was the closest thing to a home for him, berating the Ultra for failing his duty, Gen told Mebius that he could never afford to loose to any opponent. He declared that although Taro had accepted him as Earth's present Guardian, he could not for he could not trust him with his home. When his friends spoke out for him, Gen declared that they did not truly understand the consequences of them losing, declaring their ongoing struggle as a battle that always had to be won. Leo left Mirai with a training Gi and told him to prove he could protect the Earth by defeating the Reflectian.
Later on, Gen watched as Mirai trained in seclusion, he had obviously understood what Leo was trying to impart to him and waited anxiously for Mirai's training to pay of. When the time came for Mirai's rematch, Gen watched fromt the sidelines as Mebius first used his spin kick. However when he saw the Refllectian was using Mirai's friends as hostages, he could not hold back, he transformed and saved the young Ultra, while Mirai freed his friends. The two then proceeded to trounce the evil alien, defeating him with their respective kick attacks. Afterwards Gen told his goodbyes, giving Mirai his approval, as he continued to protect Earth, afterwards Gen left to his mission which was far away from the Earth.
Later during the Emperor's invasion of earth, Leo and Astra used their Double flasher to remove the rock covering the sun, along with the Ultra Brothers who used their signature beams.
Genappeared in the Ultraman Saga movie with Dan, Seiji, Hayata and Hideki, each serving as the mouth piece for their Ultra counterpart. They met in the land of light when Seven/Dan noticed that Zero had just moved to another universe. While the questioned why he would do that they also noted that something was going around different universes and taking monsters, even some from the Monster Graveyard. They noted that it was a powerful source of minus energy and that unfortunately they could only monitor a few of the countless alternate Space-Time zones.
In a deleted scene, Leo and the other Ultra brothers would fly to the alternate Earth to assist Ultraman Saga against Alien Bat's monster weapons. Leowould face of against Tyrant for the first time and defeat him with the Leo Kick.
Leo Ring: Named and modelled after the actual Leo Constellation. The Leo Ring is a gold ring in the shape of a Lion's head with a red jewel in the center that is worn on Gen's left hand. Gen makes a karate stance and shouts "Leo!" as the red jewel emanates light from Leo's ring, bringing forth the transformation.
|Showa Heroes||Shin Hayata | Dan Moroboshi | Hideki Goh | Seiji Hokuto | Yuko Minami | Kotaro Higashi | Gen Ohtori | Takeshi Yamato | Choichiro Hikari|
|Heisei Heroes||Masaki Kazimori | Jack Shindo | Kenichi Kai |Genki Kagura | Katsuto Asahi | Daigo Madoka | Tsubasa Madoka | Amui | Ginga Yumeboshi | Shin Asuka | Gamu Takayama | Hiroya Fujimiya | Musashi Haruno | Julie | Kaito Touma | Mirai Hibino | Kazuya Serizawa | Ryuu Aihara | Shingo Sakomizu | Jin | Ran | Nozomu Taiga | Hikaru Raido | Shou|
|The Ultra Force||Chuck Gavin | Beth O'Brian | Scott Masterson|
|Deunamists||Shunichi Maki | Jun Himeya | Ren Senjyu | Nagi Saijyo | Kazuki Komon|
|Evil Ultra Hosts||Keigo Masaki | Riko Saida | Shinya Mizorogi | Hiroyuki Misawa | Mitsuhiko Ishibori ||
|Other Hero Hosts||Kyotaro Kagami | Goro Kirishima | Daisuke Misaki | Naoki Tachibana | Naoto Sho | Sam Collins | Ai Kumasiro | Akira Kageyama|